Finding the Third Proportional to 125.50 and 142.25

Step by Step Solution

1. Step 1: Write the proportion equation
   125.50 : 142.25 = 142.25 : x
2. Step 2: Convert to fraction form
   125.50/142.25 = 142.25/x
3. Step 3: Cross multiply
   125.50x = 142.25 × 142.25
4. Step 4: Simplify right side
   125.50x = 20,235.06
5. Step 5: Solve for x
   x = 20,235.06/125.50
6. Step 6: Final answer
   x = 161.24