Finding the Third Proportional to 31,759 and 62,721

Step by Step Solution

1. Step 1: Write the proportion equation
   31,759 : 62,721 = 62,721 : x
2. Step 2: Convert to fraction form
   31,759/62,721 = 62,721/x
3. Step 3: Cross multiply
   31,759x = 62,721 × 62,721
4. Step 4: Simplify right side
   31,759x = 3,933,923,841
5. Step 5: Solve for x
   x = 3,933,923,841/31,759
6. Step 6: Final answer
   x = 123,868.00