Finding the Third Proportional to 4,417,779 and 9,662,694

Step by Step Solution

1. Step 1: Write the proportion equation
   4,417,779 : 9,662,694 = 9,662,694 : x
2. Step 2: Convert to fraction form
   4,417,779/9,662,694 = 9,662,694/x
3. Step 3: Cross multiply
   4,417,779x = 9,662,694 × 9,662,694
4. Step 4: Simplify right side
   4,417,779x = 93,367,655,337,636
5. Step 5: Solve for x
   x = 93,367,655,337,636/4,417,779
6. Step 6: Final answer
   x = 21,134,523.78