Finding the Third Proportional to 26,638.88 and 57,405.38

Step by Step Solution

1. Step 1: Write the proportion equation
   26,638.88 : 57,405.38 = 57,405.38 : x
2. Step 2: Convert to fraction form
   26,638.88/57,405.38 = 57,405.38/x
3. Step 3: Cross multiply
   26,638.88x = 57,405.38 × 57,405.38
4. Step 4: Simplify right side
   26,638.88x = 3,295,377,078.89
5. Step 5: Solve for x
   x = 3,295,377,078.89/26,638.88
6. Step 6: Final answer
   x = 123,705.56