Finding the Third Proportional to 3,872,496 and 8,416,644

Step by Step Solution

1. Step 1: Write the proportion equation
   3,872,496 : 8,416,644 = 8,416,644 : x
2. Step 2: Convert to fraction form
   3,872,496/8,416,644 = 8,416,644/x
3. Step 3: Cross multiply
   3,872,496x = 8,416,644 × 8,416,644
4. Step 4: Simplify right side
   3,872,496x = 70,839,896,222,736
5. Step 5: Solve for x
   x = 70,839,896,222,736/3,872,496
6. Step 6: Final answer
   x = 18,293,084.41