Finding the Third Proportional to 140.50 and 301.25

Step by Step Solution

1. Step 1: Write the proportion equation
   140.50 : 301.25 = 301.25 : x
2. Step 2: Convert to fraction form
   140.50/301.25 = 301.25/x
3. Step 3: Cross multiply
   140.50x = 301.25 × 301.25
4. Step 4: Simplify right side
   140.50x = 90,751.56
5. Step 5: Solve for x
   x = 90,751.56/140.50
6. Step 6: Final answer
   x = 645.92