Finding the Third Proportional to 26,400.56 and 54,985.31

Step by Step Solution

1. Step 1: Write the proportion equation
   26,400.56 : 54,985.31 = 54,985.31 : x
2. Step 2: Convert to fraction form
   26,400.56/54,985.31 = 54,985.31/x
3. Step 3: Cross multiply
   26,400.56x = 54,985.31 × 54,985.31
4. Step 4: Simplify right side
   26,400.56x = 3,023,384,590.72
5. Step 5: Solve for x
   x = 3,023,384,590.72/26,400.56
6. Step 6: Final answer
   x = 114,519.70