Finding the Third Proportional to 42,554,688 and 67,394,655

Step by Step Solution

1. Step 1: Write the proportion equation
   42,554,688 : 67,394,655 = 67,394,655 : x
2. Step 2: Convert to fraction form
   42,554,688/67,394,655 = 67,394,655/x
3. Step 3: Cross multiply
   42,554,688x = 67,394,655 × 67,394,655
4. Step 4: Simplify right side
   42,554,688x = 4,542,039,522,569,025
5. Step 5: Solve for x
   x = 4,542,039,522,569,025/42,554,688
6. Step 6: Final answer
   x = 106,734,175.15