Finding the Third Proportional to 3,858,624 and 8,381,520

Step by Step Solution

1. Step 1: Write the proportion equation
   3,858,624 : 8,381,520 = 8,381,520 : x
2. Step 2: Convert to fraction form
   3,858,624/8,381,520 = 8,381,520/x
3. Step 3: Cross multiply
   3,858,624x = 8,381,520 × 8,381,520
4. Step 4: Simplify right side
   3,858,624x = 70,249,877,510,400
5. Step 5: Solve for x
   x = 70,249,877,510,400/3,858,624
6. Step 6: Final answer
   x = 18,205,940.13