Finding the Third Proportional to 72.25 and 110.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72.25 : 110.75 = 110.75 : x
2. Step 2: Convert to fraction form
   72.25/110.75 = 110.75/x
3. Step 3: Cross multiply
   72.25x = 110.75 × 110.75
4. Step 4: Simplify right side
   72.25x = 12,265.56
5. Step 5: Solve for x
   x = 12,265.56/72.25
6. Step 6: Final answer
   x = 169.77