Finding the Third Proportional to 5,402,151 and 8,240,426

Step by Step Solution

1. Step 1: Write the proportion equation
   5,402,151 : 8,240,426 = 8,240,426 : x
2. Step 2: Convert to fraction form
   5,402,151/8,240,426 = 8,240,426/x
3. Step 3: Cross multiply
   5,402,151x = 8,240,426 × 8,240,426
4. Step 4: Simplify right side
   5,402,151x = 67,904,620,661,476
5. Step 5: Solve for x
   x = 67,904,620,661,476/5,402,151
6. Step 6: Final answer
   x = 12,569,922.73