Finding the Third Proportional to 3,839,366 and 8,401,900

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839,366 : 8,401,900 = 8,401,900 : x
2. Step 2: Convert to fraction form
   3,839,366/8,401,900 = 8,401,900/x
3. Step 3: Cross multiply
   3,839,366x = 8,401,900 × 8,401,900
4. Step 4: Simplify right side
   3,839,366x = 70,591,923,610,000
5. Step 5: Solve for x
   x = 70,591,923,610,000/3,839,366
6. Step 6: Final answer
   x = 18,386,349.10