Finding the Third Proportional to 21,720,414 and 31,870,554

Step by Step Solution

1. Step 1: Write the proportion equation
   21,720,414 : 31,870,554 = 31,870,554 : x
2. Step 2: Convert to fraction form
   21,720,414/31,870,554 = 31,870,554/x
3. Step 3: Cross multiply
   21,720,414x = 31,870,554 × 31,870,554
4. Step 4: Simplify right side
   21,720,414x = 1,015,732,212,266,916
5. Step 5: Solve for x
   x = 1,015,732,212,266,916/21,720,414
6. Step 6: Final answer
   x = 46,763,943.46