Finding the Third Proportional to 266,958.28 and 580,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   266,958.28 : 580,086.56 = 580,086.56 : x
2. Step 2: Convert to fraction form
   266,958.28/580,086.56 = 580,086.56/x
3. Step 3: Cross multiply
   266,958.28x = 580,086.56 × 580,086.56
4. Step 4: Simplify right side
   266,958.28x = 336,500,419,993.07
5. Step 5: Solve for x
   x = 336,500,419,993.07/266,958.28
6. Step 6: Final answer
   x = 1,260,498.15