Finding the Third Proportional to 851.06 and 1,225.69

Step by Step Solution

1. Step 1: Write the proportion equation
   851.06 : 1,225.69 = 1,225.69 : x
2. Step 2: Convert to fraction form
   851.06/1,225.69 = 1,225.69/x
3. Step 3: Cross multiply
   851.06x = 1,225.69 × 1,225.69
4. Step 4: Simplify right side
   851.06x = 1,502,309.85
5. Step 5: Solve for x
   x = 1,502,309.85/851.06
6. Step 6: Final answer
   x = 1,765.22