Finding the Third Proportional to 3,941,821 and 8,498,918

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941,821 : 8,498,918 = 8,498,918 : x
2. Step 2: Convert to fraction form
   3,941,821/8,498,918 = 8,498,918/x
3. Step 3: Cross multiply
   3,941,821x = 8,498,918 × 8,498,918
4. Step 4: Simplify right side
   3,941,821x = 72,231,607,170,724
5. Step 5: Solve for x
   x = 72,231,607,170,724/3,941,821
6. Step 6: Final answer
   x = 18,324,425.99