Three different number have a product of 36 and a sum of 11. what are the three numbers

Divisors of 36 are ...

... 1, 2, 3, 4, 6, 9, 12, 18, 36

The three of these that meet your requirement are 2, 3, 6.

We are given proportion as 14/x = 1/2

So first step is to get rid off 2 from denominator,so we multipy both sides by 2

2(14/x) =2(1/2)

28/x =1

Next step is to get rid off x from denominator ,so we multiply both sides  of the equation by x

x(28/x) =x(1)

28x/x =x

28 =x

Hence we get value of x =28

So answer is choice d) 28