What are the steps to solving a proportion?

Question

Like it’s 5 over 8 and 20 over x let’s just say.

Answer 1

5 / 8 = 20 / x

Solve for x. Multiply both sides by x and get

5x / 8 = 20

Now multiply both sides by 8/5 and get

x = (8/5)(20) = 32