Finding the Third Proportional to 31,056,380 and 67,288,532

Step by Step Solution

1. Step 1: Write the proportion equation
   31,056,380 : 67,288,532 = 67,288,532 : x
2. Step 2: Convert to fraction form
   31,056,380/67,288,532 = 67,288,532/x
3. Step 3: Cross multiply
   31,056,380x = 67,288,532 × 67,288,532
4. Step 4: Simplify right side
   31,056,380x = 4,527,746,538,715,024
5. Step 5: Solve for x
   x = 4,527,746,538,715,024/31,056,380
6. Step 6: Final answer
   x = 145,791,188.11