Finding the Third Proportional to 72,722,231 and 156,981,980

Step by Step Solution

1. Step 1: Write the proportion equation
   72,722,231 : 156,981,980 = 156,981,980 : x
2. Step 2: Convert to fraction form
   72,722,231/156,981,980 = 156,981,980/x
3. Step 3: Cross multiply
   72,722,231x = 156,981,980 × 156,981,980
4. Step 4: Simplify right side
   72,722,231x = 24,643,342,044,720,400
5. Step 5: Solve for x
   x = 24,643,342,044,720,400/72,722,231
6. Step 6: Final answer
   x = 338,869,444.82