Finding the Third Proportional to 67.50 and 147.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67.50 : 147.38 = 147.38 : x
2. Step 2: Convert to fraction form
   67.50/147.38 = 147.38/x
3. Step 3: Cross multiply
   67.50x = 147.38 × 147.38
4. Step 4: Simplify right side
   67.50x = 21,719.39
5. Step 5: Solve for x
   x = 21,719.39/67.50
6. Step 6: Final answer
   x = 321.77