Finding the Third Proportional to 728.05 and 1,104.89

Step by Step Solution

1. Step 1: Write the proportion equation
   728.05 : 1,104.89 = 1,104.89 : x
2. Step 2: Convert to fraction form
   728.05/1,104.89 = 1,104.89/x
3. Step 3: Cross multiply
   728.05x = 1,104.89 × 1,104.89
4. Step 4: Simplify right side
   728.05x = 1,220,783.29
5. Step 5: Solve for x
   x = 1,220,783.29/728.05
6. Step 6: Final answer
   x = 1,676.78