Finding the Third Proportional to 72,947,440.69 and 156,320,310.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,947,440.69 : 156,320,310.38 = 156,320,310.38 : x
2. Step 2: Convert to fraction form
   72,947,440.69/156,320,310.38 = 156,320,310.38/x
3. Step 3: Cross multiply
   72,947,440.69x = 156,320,310.38 × 156,320,310.38
4. Step 4: Simplify right side
   72,947,440.69x = 24,436,039,435,736,332
5. Step 5: Solve for x
   x = 24,436,039,435,736,332/72,947,440.69
6. Step 6: Final answer
   x = 334,981,449.73