Finding the Third Proportional to 72.25 and 101.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72.25 : 101.75 = 101.75 : x
2. Step 2: Convert to fraction form
   72.25/101.75 = 101.75/x
3. Step 3: Cross multiply
   72.25x = 101.75 × 101.75
4. Step 4: Simplify right side
   72.25x = 10,353.06
5. Step 5: Solve for x
   x = 10,353.06/72.25
6. Step 6: Final answer
   x = 143.29