Finding the Third Proportional to 220.69 and 452.81

Step by Step Solution

1. Step 1: Write the proportion equation
   220.69 : 452.81 = 452.81 : x
2. Step 2: Convert to fraction form
   220.69/452.81 = 452.81/x
3. Step 3: Cross multiply
   220.69x = 452.81 × 452.81
4. Step 4: Simplify right side
   220.69x = 205,039.16
5. Step 5: Solve for x
   x = 205,039.16/220.69
6. Step 6: Final answer
   x = 929.09