Finding the Third Proportional to 33,513,991.50 and 72,318,516

Step by Step Solution

1. Step 1: Write the proportion equation
   33,513,991.50 : 72,318,516 = 72,318,516 : x
2. Step 2: Convert to fraction form
   33,513,991.50/72,318,516 = 72,318,516/x
3. Step 3: Cross multiply
   33,513,991.50x = 72,318,516 × 72,318,516
4. Step 4: Simplify right side
   33,513,991.50x = 5,229,967,756,442,256
5. Step 5: Solve for x
   x = 5,229,967,756,442,256/33,513,991.50
6. Step 6: Final answer
   x = 156,053,263.80