Finding the Third Proportional to 731.81 and 1,105.17

Step by Step Solution

1. Step 1: Write the proportion equation
   731.81 : 1,105.17 = 1,105.17 : x
2. Step 2: Convert to fraction form
   731.81/1,105.17 = 1,105.17/x
3. Step 3: Cross multiply
   731.81x = 1,105.17 × 1,105.17
4. Step 4: Simplify right side
   731.81x = 1,221,404.87
5. Step 5: Solve for x
   x = 1,221,404.87/731.81
6. Step 6: Final answer
   x = 1,669.01