Finding the Third Proportional to 91.50 and 148.13

Step by Step Solution

1. Step 1: Write the proportion equation
   91.50 : 148.13 = 148.13 : x
2. Step 2: Convert to fraction form
   91.50/148.13 = 148.13/x
3. Step 3: Cross multiply
   91.50x = 148.13 × 148.13
4. Step 4: Simplify right side
   91.50x = 21,941.02
5. Step 5: Solve for x
   x = 21,941.02/91.50
6. Step 6: Final answer
   x = 239.79