Finding the Third Proportional to 71,645,989.50 and 155,456,073

Step by Step Solution

1. Step 1: Write the proportion equation
   71,645,989.50 : 155,456,073 = 155,456,073 : x
2. Step 2: Convert to fraction form
   71,645,989.50/155,456,073 = 155,456,073/x
3. Step 3: Cross multiply
   71,645,989.50x = 155,456,073 × 155,456,073
4. Step 4: Simplify right side
   71,645,989.50x = 24,166,590,632,581,328
5. Step 5: Solve for x
   x = 24,166,590,632,581,328/71,645,989.50
6. Step 6: Final answer
   x = 337,305,560.31