Finding the Third Proportional to 5,423,784 and 8,205,656

Step by Step Solution

1. Step 1: Write the proportion equation
   5,423,784 : 8,205,656 = 8,205,656 : x
2. Step 2: Convert to fraction form
   5,423,784/8,205,656 = 8,205,656/x
3. Step 3: Cross multiply
   5,423,784x = 8,205,656 × 8,205,656
4. Step 4: Simplify right side
   5,423,784x = 67,332,790,390,336
5. Step 5: Solve for x
   x = 67,332,790,390,336/5,423,784
6. Step 6: Final answer
   x = 12,414,356.91