Finding the Third Proportional to 3,858,632 and 8,381,320

Step by Step Solution

1. Step 1: Write the proportion equation
   3,858,632 : 8,381,320 = 8,381,320 : x
2. Step 2: Convert to fraction form
   3,858,632/8,381,320 = 8,381,320/x
3. Step 3: Cross multiply
   3,858,632x = 8,381,320 × 8,381,320
4. Step 4: Simplify right side
   3,858,632x = 70,246,524,942,400
5. Step 5: Solve for x
   x = 70,246,524,942,400/3,858,632
6. Step 6: Final answer
   x = 18,205,033.53