Finding the Third Proportional to 5,402,160 and 8,240,436

Step by Step Solution

1. Step 1: Write the proportion equation
   5,402,160 : 8,240,436 = 8,240,436 : x
2. Step 2: Convert to fraction form
   5,402,160/8,240,436 = 8,240,436/x
3. Step 3: Cross multiply
   5,402,160x = 8,240,436 × 8,240,436
4. Step 4: Simplify right side
   5,402,160x = 67,904,785,470,096
5. Step 5: Solve for x
   x = 67,904,785,470,096/5,402,160
6. Step 6: Final answer
   x = 12,569,932.30