Finding the Third Proportional to 131,568 and 276,890.25

Step by Step Solution

1. Step 1: Write the proportion equation
   131,568 : 276,890.25 = 276,890.25 : x
2. Step 2: Convert to fraction form
   131,568/276,890.25 = 276,890.25/x
3. Step 3: Cross multiply
   131,568x = 276,890.25 × 276,890.25
4. Step 4: Simplify right side
   131,568x = 76,668,210,545.06
5. Step 5: Solve for x
   x = 76,668,210,545.06/131,568
6. Step 6: Final answer
   x = 582,726.88