Finding the Third Proportional to 220.69 and 333.94

Step by Step Solution

1. Step 1: Write the proportion equation
   220.69 : 333.94 = 333.94 : x
2. Step 2: Convert to fraction form
   220.69/333.94 = 333.94/x
3. Step 3: Cross multiply
   220.69x = 333.94 × 333.94
4. Step 4: Simplify right side
   220.69x = 111,514.25
5. Step 5: Solve for x
   x = 111,514.25/220.69
6. Step 6: Final answer
   x = 505.30