Finding the Third Proportional to 91.50 and 103.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91.50 : 103.25 = 103.25 : x
2. Step 2: Convert to fraction form
   91.50/103.25 = 103.25/x
3. Step 3: Cross multiply
   91.50x = 103.25 × 103.25
4. Step 4: Simplify right side
   91.50x = 10,660.56
5. Step 5: Solve for x
   x = 10,660.56/91.50
6. Step 6: Final answer
   x = 116.51