Finding the Third Proportional to 72,742.50 and 112,896

Step by Step Solution

1. Step 1: Write the proportion equation
   72,742.50 : 112,896 = 112,896 : x
2. Step 2: Convert to fraction form
   72,742.50/112,896 = 112,896/x
3. Step 3: Cross multiply
   72,742.50x = 112,896 × 112,896
4. Step 4: Simplify right side
   72,742.50x = 12,745,506,816
5. Step 5: Solve for x
   x = 12,745,506,816/72,742.50
6. Step 6: Final answer
   x = 175,214.03