Finding the Third Proportional to 26,278.50 and 58,387.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,278.50 : 58,387.50 = 58,387.50 : x
2. Step 2: Convert to fraction form
   26,278.50/58,387.50 = 58,387.50/x
3. Step 3: Cross multiply
   26,278.50x = 58,387.50 × 58,387.50
4. Step 4: Simplify right side
   26,278.50x = 3,409,100,156.25
5. Step 5: Solve for x
   x = 3,409,100,156.25/26,278.50
6. Step 6: Final answer
   x = 129,729.63