Finding the Third Proportional to 268,290 and 587,017.13

Step by Step Solution

1. Step 1: Write the proportion equation
   268,290 : 587,017.13 = 587,017.13 : x
2. Step 2: Convert to fraction form
   268,290/587,017.13 = 587,017.13/x
3. Step 3: Cross multiply
   268,290x = 587,017.13 × 587,017.13
4. Step 4: Simplify right side
   268,290x = 344,589,105,043.27
5. Step 5: Solve for x
   x = 344,589,105,043.27/268,290
6. Step 6: Final answer
   x = 1,284,390.42