Finding the Third Proportional to 67.71 and 143.65

Step by Step Solution

1. Step 1: Write the proportion equation
   67.71 : 143.65 = 143.65 : x
2. Step 2: Convert to fraction form
   67.71/143.65 = 143.65/x
3. Step 3: Cross multiply
   67.71x = 143.65 × 143.65
4. Step 4: Simplify right side
   67.71x = 20,634.87
5. Step 5: Solve for x
   x = 20,634.87/67.71
6. Step 6: Final answer
   x = 304.75