Finding the Third Proportional to 671.06 and 1,065.38

Step by Step Solution

1. Step 1: Write the proportion equation
   671.06 : 1,065.38 = 1,065.38 : x
2. Step 2: Convert to fraction form
   671.06/1,065.38 = 1,065.38/x
3. Step 3: Cross multiply
   671.06x = 1,065.38 × 1,065.38
4. Step 4: Simplify right side
   671.06x = 1,135,023.89
5. Step 5: Solve for x
   x = 1,135,023.89/671.06
6. Step 6: Final answer
   x = 1,691.38