Finding the Third Proportional to 5,497,557 and 8,388,531

Step by Step Solution

1. Step 1: Write the proportion equation
   5,497,557 : 8,388,531 = 8,388,531 : x
2. Step 2: Convert to fraction form
   5,497,557/8,388,531 = 8,388,531/x
3. Step 3: Cross multiply
   5,497,557x = 8,388,531 × 8,388,531
4. Step 4: Simplify right side
   5,497,557x = 70,367,452,337,961
5. Step 5: Solve for x
   x = 70,367,452,337,961/5,497,557
6. Step 6: Final answer
   x = 12,799,767.67