Finding the Third Proportional to 5,438,976 and 8,392,704

Step by Step Solution

1. Step 1: Write the proportion equation
   5,438,976 : 8,392,704 = 8,392,704 : x
2. Step 2: Convert to fraction form
   5,438,976/8,392,704 = 8,392,704/x
3. Step 3: Cross multiply
   5,438,976x = 8,392,704 × 8,392,704
4. Step 4: Simplify right side
   5,438,976x = 70,437,480,431,616
5. Step 5: Solve for x
   x = 70,437,480,431,616/5,438,976
6. Step 6: Final answer
   x = 12,950,504.00