Finding the Third Proportional to 26,821.75 and 57,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,821.75 : 57,108.50 = 57,108.50 : x
2. Step 2: Convert to fraction form
   26,821.75/57,108.50 = 57,108.50/x
3. Step 3: Cross multiply
   26,821.75x = 57,108.50 × 57,108.50
4. Step 4: Simplify right side
   26,821.75x = 3,261,380,772.25
5. Step 5: Solve for x
   x = 3,261,380,772.25/26,821.75
6. Step 6: Final answer
   x = 121,594.63