Given an array of numbers, return the second largest number in the array.
[5, 4, 10, 3, 6]
The second largest number in this array is 6.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given an array of numbers, return the second largest number in the array.

### Input:
[5, 4, 10, 3, 6]

### Output:
The second largest number in this array is 6.