Finding the Third Proportional to 10,816,542 and 21,931,812

Step by Step Solution

1. Step 1: Write the proportion equation
   10,816,542 : 21,931,812 = 21,931,812 : x
2. Step 2: Convert to fraction form
   10,816,542/21,931,812 = 21,931,812/x
3. Step 3: Cross multiply
   10,816,542x = 21,931,812 × 21,931,812
4. Step 4: Simplify right side
   10,816,542x = 481,004,377,603,344
5. Step 5: Solve for x
   x = 481,004,377,603,344/10,816,542
6. Step 6: Final answer
   x = 44,469,330.18