Finding the Third Proportional to 31,561,560 and 67,998,688

Step by Step Solution

1. Step 1: Write the proportion equation
   31,561,560 : 67,998,688 = 67,998,688 : x
2. Step 2: Convert to fraction form
   31,561,560/67,998,688 = 67,998,688/x
3. Step 3: Cross multiply
   31,561,560x = 67,998,688 × 67,998,688
4. Step 4: Simplify right side
   31,561,560x = 4,623,821,569,721,344
5. Step 5: Solve for x
   x = 4,623,821,569,721,344/31,561,560
6. Step 6: Final answer
   x = 146,501,680.20