Finding the Third Proportional to 287.88 and 600.69

Step by Step Solution

1. Step 1: Write the proportion equation
   287.88 : 600.69 = 600.69 : x
2. Step 2: Convert to fraction form
   287.88/600.69 = 600.69/x
3. Step 3: Cross multiply
   287.88x = 600.69 × 600.69
4. Step 4: Simplify right side
   287.88x = 360,825.47
5. Step 5: Solve for x
   x = 360,825.47/287.88
6. Step 6: Final answer
   x = 1,253.41