Finding the Third Proportional to 5,423,776 and 8,205,644

Step by Step Solution

1. Step 1: Write the proportion equation
   5,423,776 : 8,205,644 = 8,205,644 : x
2. Step 2: Convert to fraction form
   5,423,776/8,205,644 = 8,205,644/x
3. Step 3: Cross multiply
   5,423,776x = 8,205,644 × 8,205,644
4. Step 4: Simplify right side
   5,423,776x = 67,332,593,454,736
5. Step 5: Solve for x
   x = 67,332,593,454,736/5,423,776
6. Step 6: Final answer
   x = 12,414,338.91