Finding the Third Proportional to 103.50 and 160.31

Step by Step Solution

1. Step 1: Write the proportion equation
   103.50 : 160.31 = 160.31 : x
2. Step 2: Convert to fraction form
   103.50/160.31 = 160.31/x
3. Step 3: Cross multiply
   103.50x = 160.31 × 160.31
4. Step 4: Simplify right side
   103.50x = 25,700.10
5. Step 5: Solve for x
   x = 25,700.10/103.50
6. Step 6: Final answer
   x = 248.31