Finding the Third Proportional to 67.50 and 73.13

Step by Step Solution

1. Step 1: Write the proportion equation
   67.50 : 73.13 = 73.13 : x
2. Step 2: Convert to fraction form
   67.50/73.13 = 73.13/x
3. Step 3: Cross multiply
   67.50x = 73.13 × 73.13
4. Step 4: Simplify right side
   67.50x = 5,347.27
5. Step 5: Solve for x
   x = 5,347.27/67.50
6. Step 6: Final answer
   x = 79.22