Fa 42.9 ft. flagpole casts a 253.1 ft. long shadow then how long is the shadow that a 6.2ft. tall woman casts

Here, Ratio of shadow to object = 253.1 / 42.9 
So, it would remain constant for all objects.
Let, the show of women = x
Then, x / 6.2 = 253.1 / 42.9
x = 253.1 * 6.2 / 42.9
x = 36.58 Ft

In short, Your Answer would be 36.58 Feet

Hope this helps!