Finding the Third Proportional to 4,640,564 and 9,992,022

Step by Step Solution

1. Step 1: Write the proportion equation
   4,640,564 : 9,992,022 = 9,992,022 : x
2. Step 2: Convert to fraction form
   4,640,564/9,992,022 = 9,992,022/x
3. Step 3: Cross multiply
   4,640,564x = 9,992,022 × 9,992,022
4. Step 4: Simplify right side
   4,640,564x = 99,840,503,648,484
5. Step 5: Solve for x
   x = 99,840,503,648,484/4,640,564
6. Step 6: Final answer
   x = 21,514,734.77