Finding the Third Proportional to 3,838,720 and 8,208,800

Step by Step Solution

1. Step 1: Write the proportion equation
   3,838,720 : 8,208,800 = 8,208,800 : x
2. Step 2: Convert to fraction form
   3,838,720/8,208,800 = 8,208,800/x
3. Step 3: Cross multiply
   3,838,720x = 8,208,800 × 8,208,800
4. Step 4: Simplify right side
   3,838,720x = 67,384,397,440,000
5. Step 5: Solve for x
   x = 67,384,397,440,000/3,838,720
6. Step 6: Final answer
   x = 17,553,871.46