Finding the Third Proportional to 10,221,682 and 21,861,633

Step by Step Solution

1. Step 1: Write the proportion equation
   10,221,682 : 21,861,633 = 21,861,633 : x
2. Step 2: Convert to fraction form
   10,221,682/21,861,633 = 21,861,633/x
3. Step 3: Cross multiply
   10,221,682x = 21,861,633 × 21,861,633
4. Step 4: Simplify right side
   10,221,682x = 477,930,997,426,689
5. Step 5: Solve for x
   x = 477,930,997,426,689/10,221,682
6. Step 6: Final answer
   x = 46,756,590.30