Finding the Third Proportional to 604.50 and 851.25

Step by Step Solution

1. Step 1: Write the proportion equation
   604.50 : 851.25 = 851.25 : x
2. Step 2: Convert to fraction form
   604.50/851.25 = 851.25/x
3. Step 3: Cross multiply
   604.50x = 851.25 × 851.25
4. Step 4: Simplify right side
   604.50x = 724,626.56
5. Step 5: Solve for x
   x = 724,626.56/604.50
6. Step 6: Final answer
   x = 1,198.72