Finding the Third Proportional to 21,044.25 and 31,920.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,044.25 : 31,920.75 = 31,920.75 : x
2. Step 2: Convert to fraction form
   21,044.25/31,920.75 = 31,920.75/x
3. Step 3: Cross multiply
   21,044.25x = 31,920.75 × 31,920.75
4. Step 4: Simplify right side
   21,044.25x = 1,018,934,280.56
5. Step 5: Solve for x
   x = 1,018,934,280.56/21,044.25
6. Step 6: Final answer
   x = 48,418.66