Finding the Third Proportional to 3,826,520 and 8,399,448

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826,520 : 8,399,448 = 8,399,448 : x
2. Step 2: Convert to fraction form
   3,826,520/8,399,448 = 8,399,448/x
3. Step 3: Cross multiply
   3,826,520x = 8,399,448 × 8,399,448
4. Step 4: Simplify right side
   3,826,520x = 70,550,726,704,704
5. Step 5: Solve for x
   x = 70,550,726,704,704/3,826,520
6. Step 6: Final answer
   x = 18,437,307.71