Finding the Third Proportional to 100.62 and 220.22

Step by Step Solution

1. Step 1: Write the proportion equation
   100.62 : 220.22 = 220.22 : x
2. Step 2: Convert to fraction form
   100.62/220.22 = 220.22/x
3. Step 3: Cross multiply
   100.62x = 220.22 × 220.22
4. Step 4: Simplify right side
   100.62x = 48,496.30
5. Step 5: Solve for x
   x = 48,496.30/100.62
6. Step 6: Final answer
   x = 481.99