Finding the Third Proportional to 39,502.69 and 72,717.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,502.69 : 72,717.75 = 72,717.75 : x
2. Step 2: Convert to fraction form
   39,502.69/72,717.75 = 72,717.75/x
3. Step 3: Cross multiply
   39,502.69x = 72,717.75 × 72,717.75
4. Step 4: Simplify right side
   39,502.69x = 5,287,871,165.06
5. Step 5: Solve for x
   x = 5,287,871,165.06/39,502.69
6. Step 6: Final answer
   x = 133,861.05