Finding the Third Proportional to 72,722,229 and 156,981,976

Step by Step Solution

1. Step 1: Write the proportion equation
   72,722,229 : 156,981,976 = 156,981,976 : x
2. Step 2: Convert to fraction form
   72,722,229/156,981,976 = 156,981,976/x
3. Step 3: Cross multiply
   72,722,229x = 156,981,976 × 156,981,976
4. Step 4: Simplify right side
   72,722,229x = 24,643,340,788,864,576
5. Step 5: Solve for x
   x = 24,643,340,788,864,576/72,722,229
6. Step 6: Final answer
   x = 338,869,436.87