Finding the Third Proportional to 26,290.69 and 40,786.31

Step by Step Solution

1. Step 1: Write the proportion equation
   26,290.69 : 40,786.31 = 40,786.31 : x
2. Step 2: Convert to fraction form
   26,290.69/40,786.31 = 40,786.31/x
3. Step 3: Cross multiply
   26,290.69x = 40,786.31 × 40,786.31
4. Step 4: Simplify right side
   26,290.69x = 1,663,523,287.35
5. Step 5: Solve for x
   x = 1,663,523,287.35/26,290.69
6. Step 6: Final answer
   x = 63,274.24