Finding the Third Proportional to 5,187,744 and 8,287,542

Step by Step Solution

1. Step 1: Write the proportion equation
   5,187,744 : 8,287,542 = 8,287,542 : x
2. Step 2: Convert to fraction form
   5,187,744/8,287,542 = 8,287,542/x
3. Step 3: Cross multiply
   5,187,744x = 8,287,542 × 8,287,542
4. Step 4: Simplify right side
   5,187,744x = 68,683,352,401,764
5. Step 5: Solve for x
   x = 68,683,352,401,764/5,187,744
6. Step 6: Final answer
   x = 13,239,541.58