Finding the Third Proportional to 21,531 and 31,545

Step by Step Solution

1. Step 1: Write the proportion equation
   21,531 : 31,545 = 31,545 : x
2. Step 2: Convert to fraction form
   21,531/31,545 = 31,545/x
3. Step 3: Cross multiply
   21,531x = 31,545 × 31,545
4. Step 4: Simplify right side
   21,531x = 995,087,025
5. Step 5: Solve for x
   x = 995,087,025/21,531
6. Step 6: Final answer
   x = 46,216.48