Finding the Third Proportional to 26,581.50 and 43,510.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,581.50 : 43,510.50 = 43,510.50 : x
2. Step 2: Convert to fraction form
   26,581.50/43,510.50 = 43,510.50/x
3. Step 3: Cross multiply
   26,581.50x = 43,510.50 × 43,510.50
4. Step 4: Simplify right side
   26,581.50x = 1,893,163,610.25
5. Step 5: Solve for x
   x = 1,893,163,610.25/26,581.50
6. Step 6: Final answer
   x = 71,221.10