Finding the Third Proportional to 5,402,130 and 8,240,397

Step by Step Solution

1. Step 1: Write the proportion equation
   5,402,130 : 8,240,397 = 8,240,397 : x
2. Step 2: Convert to fraction form
   5,402,130/8,240,397 = 8,240,397/x
3. Step 3: Cross multiply
   5,402,130x = 8,240,397 × 8,240,397
4. Step 4: Simplify right side
   5,402,130x = 67,904,142,717,609
5. Step 5: Solve for x
   x = 67,904,142,717,609/5,402,130
6. Step 6: Final answer
   x = 12,569,883.12