Finding the Third Proportional to 5,539,692 and 8,287,404

Step by Step Solution

1. Step 1: Write the proportion equation
   5,539,692 : 8,287,404 = 8,287,404 : x
2. Step 2: Convert to fraction form
   5,539,692/8,287,404 = 8,287,404/x
3. Step 3: Cross multiply
   5,539,692x = 8,287,404 × 8,287,404
4. Step 4: Simplify right side
   5,539,692x = 68,681,065,059,216
5. Step 5: Solve for x
   x = 68,681,065,059,216/5,539,692
6. Step 6: Final answer
   x = 12,397,993.44