Finding the Third Proportional to 660.25 and 1,417.25

Step by Step Solution

1. Step 1: Write the proportion equation
   660.25 : 1,417.25 = 1,417.25 : x
2. Step 2: Convert to fraction form
   660.25/1,417.25 = 1,417.25/x
3. Step 3: Cross multiply
   660.25x = 1,417.25 × 1,417.25
4. Step 4: Simplify right side
   660.25x = 2,008,597.56
5. Step 5: Solve for x
   x = 2,008,597.56/660.25
6. Step 6: Final answer
   x = 3,042.18