Finding the Third Proportional to 864.50 and 1,744

Step by Step Solution

1. Step 1: Write the proportion equation
   864.50 : 1,744 = 1,744 : x
2. Step 2: Convert to fraction form
   864.50/1,744 = 1,744/x
3. Step 3: Cross multiply
   864.50x = 1,744 × 1,744
4. Step 4: Simplify right side
   864.50x = 3,041,536
5. Step 5: Solve for x
   x = 3,041,536/864.50
6. Step 6: Final answer
   x = 3,518.26