Finding the Third Proportional to 26,978.70 and 42,227.89

Step by Step Solution

1. Step 1: Write the proportion equation
   26,978.70 : 42,227.89 = 42,227.89 : x
2. Step 2: Convert to fraction form
   26,978.70/42,227.89 = 42,227.89/x
3. Step 3: Cross multiply
   26,978.70x = 42,227.89 × 42,227.89
4. Step 4: Simplify right side
   26,978.70x = 1,783,195,076.54
5. Step 5: Solve for x
   x = 1,783,195,076.54/26,978.70
6. Step 6: Final answer
   x = 66,096.42