Finding the Third Proportional to 5,402,166 and 8,240,448

Step by Step Solution

1. Step 1: Write the proportion equation
   5,402,166 : 8,240,448 = 8,240,448 : x
2. Step 2: Convert to fraction form
   5,402,166/8,240,448 = 8,240,448/x
3. Step 3: Cross multiply
   5,402,166x = 8,240,448 × 8,240,448
4. Step 4: Simplify right side
   5,402,166x = 67,904,983,240,704
5. Step 5: Solve for x
   x = 67,904,983,240,704/5,402,166
6. Step 6: Final answer
   x = 12,569,954.95