Finding the Third Proportional to 5,539,720 and 8,287,446

Step by Step Solution

1. Step 1: Write the proportion equation
   5,539,720 : 8,287,446 = 8,287,446 : x
2. Step 2: Convert to fraction form
   5,539,720/8,287,446 = 8,287,446/x
3. Step 3: Cross multiply
   5,539,720x = 8,287,446 × 8,287,446
4. Step 4: Simplify right side
   5,539,720x = 68,681,761,202,916
5. Step 5: Solve for x
   x = 68,681,761,202,916/5,539,720
6. Step 6: Final answer
   x = 12,398,056.44