Finding the Third Proportional to 31.50 and 61.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31.50 : 61.13 = 61.13 : x
2. Step 2: Convert to fraction form
   31.50/61.13 = 61.13/x
3. Step 3: Cross multiply
   31.50x = 61.13 × 61.13
4. Step 4: Simplify right side
   31.50x = 3,736.27
5. Step 5: Solve for x
   x = 3,736.27/31.50
6. Step 6: Final answer
   x = 118.61