Finding the Third Proportional to 615.09 and 1,359.28

Step by Step Solution

1. Step 1: Write the proportion equation
   615.09 : 1,359.28 = 1,359.28 : x
2. Step 2: Convert to fraction form
   615.09/1,359.28 = 1,359.28/x
3. Step 3: Cross multiply
   615.09x = 1,359.28 × 1,359.28
4. Step 4: Simplify right side
   615.09x = 1,847,645.52
5. Step 5: Solve for x
   x = 1,847,645.52/615.09
6. Step 6: Final answer
   x = 3,003.84