What number would complete the pattern? 107 98 90 83 77 68 65

The numbers are part of an arithmetic progression, where the difference between each succeeding number is reduced by 1 each time. Between 107 and 98, the difference is 9. Between 98 and 90, the difference is 8, and so on. This is shown below:

107 - 98 = 9
98 - 90 = 8
90 - 83 = 7
83 - 77 = 6
77 - x = 5
x - 68 = 4
68 - 65 = 3

From that, we can solve for x using either of the equations:

77 - x = 5
x = 77 - 5
x = 72

Therefore 72 would complete the pattern.