Finding the Third Proportional to 851.91 and 1,849.78

Step by Step Solution

1. Step 1: Write the proportion equation
   851.91 : 1,849.78 = 1,849.78 : x
2. Step 2: Convert to fraction form
   851.91/1,849.78 = 1,849.78/x
3. Step 3: Cross multiply
   851.91x = 1,849.78 × 1,849.78
4. Step 4: Simplify right side
   851.91x = 3,421,690.67
5. Step 5: Solve for x
   x = 3,421,690.67/851.91
6. Step 6: Final answer
   x = 4,016.51