Finding the Third Proportional to 26,579.50 and 39,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,579.50 : 39,989.50 = 39,989.50 : x
2. Step 2: Convert to fraction form
   26,579.50/39,989.50 = 39,989.50/x
3. Step 3: Cross multiply
   26,579.50x = 39,989.50 × 39,989.50
4. Step 4: Simplify right side
   26,579.50x = 1,599,160,110.25
5. Step 5: Solve for x
   x = 1,599,160,110.25/26,579.50
6. Step 6: Final answer
   x = 60,165.17