Finding the Third Proportional to 3,908,084 and 8,484,604

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908,084 : 8,484,604 = 8,484,604 : x
2. Step 2: Convert to fraction form
   3,908,084/8,484,604 = 8,484,604/x
3. Step 3: Cross multiply
   3,908,084x = 8,484,604 × 8,484,604
4. Step 4: Simplify right side
   3,908,084x = 71,988,505,036,816
5. Step 5: Solve for x
   x = 71,988,505,036,816/3,908,084
6. Step 6: Final answer
   x = 18,420,408.83