Finding the Third Proportional to 8,660,916 and 12,108,542

Step by Step Solution

1. Step 1: Write the proportion equation
   8,660,916 : 12,108,542 = 12,108,542 : x
2. Step 2: Convert to fraction form
   8,660,916/12,108,542 = 12,108,542/x
3. Step 3: Cross multiply
   8,660,916x = 12,108,542 × 12,108,542
4. Step 4: Simplify right side
   8,660,916x = 146,616,789,365,764
5. Step 5: Solve for x
   x = 146,616,789,365,764/8,660,916
6. Step 6: Final answer
   x = 16,928,554.60