Finding the Third Proportional to 21,553.69 and 31,510.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,553.69 : 31,510.31 = 31,510.31 : x
2. Step 2: Convert to fraction form
   21,553.69/31,510.31 = 31,510.31/x
3. Step 3: Cross multiply
   21,553.69x = 31,510.31 × 31,510.31
4. Step 4: Simplify right side
   21,553.69x = 992,899,793.85
5. Step 5: Solve for x
   x = 992,899,793.85/21,553.69
6. Step 6: Final answer
   x = 46,066.35