Finding the Third Proportional to 805.89 and 1,747.20

Step by Step Solution

1. Step 1: Write the proportion equation
   805.89 : 1,747.20 = 1,747.20 : x
2. Step 2: Convert to fraction form
   805.89/1,747.20 = 1,747.20/x
3. Step 3: Cross multiply
   805.89x = 1,747.20 × 1,747.20
4. Step 4: Simplify right side
   805.89x = 3,052,691.46
5. Step 5: Solve for x
   x = 3,052,691.46/805.89
6. Step 6: Final answer
   x = 3,787.99