Finding the Third Proportional to 12,721 and 25,801

Step by Step Solution

1. Step 1: Write the proportion equation
   12,721 : 25,801 = 25,801 : x
2. Step 2: Convert to fraction form
   12,721/25,801 = 25,801/x
3. Step 3: Cross multiply
   12,721x = 25,801 × 25,801
4. Step 4: Simplify right side
   12,721x = 665,691,601
5. Step 5: Solve for x
   x = 665,691,601/12,721
6. Step 6: Final answer
   x = 52,330.13