Finding the Third Proportional to 67.08 and 100.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67.08 : 100.20 = 100.20 : x
2. Step 2: Convert to fraction form
   67.08/100.20 = 100.20/x
3. Step 3: Cross multiply
   67.08x = 100.20 × 100.20
4. Step 4: Simplify right side
   67.08x = 10,039.10
5. Step 5: Solve for x
   x = 10,039.10/67.08
6. Step 6: Final answer
   x = 149.66