A Geostationary Earth Orbit is situated directly above the equator and has a period equal to the Earth’s rotational pe­riod. It is at the precise distance of $22,236$ miles above the Earth that a satellite can maintain an orbit with a period of rotation around the Earth exactly equal to $24$ hours. Be­ cause the satellites revolve at the same rotational speed of the Earth, they appear stationary from the Earth surface. That is why most station antennas (satellite dishes) do not need to move once they have been properly aimed at a tar­ get satellite in the sky. In an international project, a total of ten stations were equally spaced on this orbit (at the precise distance of $22,236$ miles above the equator). Given that the radius of the Earth is $3960$ miles, find the exact straight dis­tance between two neighboring stations. Write your answer in the form $a + b\sqrt{c}$, where $a, b, c$ are integers and $c > 0$ is square-free.
1. **Determine the total radius of the orbit:**
   The total radius \( R \) of the orbit is the sum of the Earth's radius and the altitude of the geostationary orbit.
   \[
   R = 3960 \text{ miles} + 22236 \text{ miles} = 26196 \text{ miles}
   \]

2. **Calculate the central angle between two neighboring stations:**
   Since there are 10 stations equally spaced on the orbit, the central angle \( \theta \) between two neighboring stations is:
   \[
   \theta = \frac{360^\circ}{10} = 36^\circ
   \]

3. **Use the chord length formula:**
   The straight-line distance \( AB \) between two neighboring stations can be found using the chord length formula:
   \[
   AB = 2R \sin\left(\frac{\theta}{2}\right)
   \]
   Here, \(\frac{\theta}{2} = 18^\circ\).

4. **Calculate \(\sin 18^\circ\):**
   To find \(\sin 18^\circ\), we use the known exact value:
   \[
   \sin 18^\circ = \frac{\sqrt{5} - 1}{4}
   \]

5. **Substitute the values into the chord length formula:**
   \[
   AB = 2 \times 26196 \times \sin 18^\circ = 2 \times 26196 \times \frac{\sqrt{5} - 1}{4}
   \]
   Simplify the expression:
   \[
   AB = 26196 \times \frac{\sqrt{5} - 1}{2}
   \]
   \[
   AB = 13098 (\sqrt{5} - 1)
   \]

6. **Express the final answer in the form \(a + b\sqrt{c}\):**
   \[
   AB = -13098 + 13098\sqrt{5}
   \]
   Here, \(a = -13098\), \(b = 13098\), and \(c = 5\).

The final answer is \(\boxed{-13098 + 13098\sqrt{5}}\).