Definition: In this task you will be given a list of numbers and you need to find the mean (average) of that list. The mean of a list can be found by summing every number in the list then dividing the result by the size of that list. The output should be rounded to 3 decimal places.
Input: [192.81, 216.608, 50.36, 232.671, 226.831, 232.654, 104.225]

179.451