Finding the Third Proportional to 26,860.50 and 42,351.75

Step by Step Solution

1. Step 1: Write the proportion equation
   26,860.50 : 42,351.75 = 42,351.75 : x
2. Step 2: Convert to fraction form
   26,860.50/42,351.75 = 42,351.75/x
3. Step 3: Cross multiply
   26,860.50x = 42,351.75 × 42,351.75
4. Step 4: Simplify right side
   26,860.50x = 1,793,670,728.06
5. Step 5: Solve for x
   x = 1,793,670,728.06/26,860.50
6. Step 6: Final answer
   x = 66,777.27