Finding the Third Proportional to 31,779 and 62,759

Step by Step Solution

1. Step 1: Write the proportion equation
   31,779 : 62,759 = 62,759 : x
2. Step 2: Convert to fraction form
   31,779/62,759 = 62,759/x
3. Step 3: Cross multiply
   31,779x = 62,759 × 62,759
4. Step 4: Simplify right side
   31,779x = 3,938,692,081
5. Step 5: Solve for x
   x = 3,938,692,081/31,779
6. Step 6: Final answer
   x = 123,940.09