Finding the Third Proportional to 220.69 and 341.16

Step by Step Solution

1. Step 1: Write the proportion equation
   220.69 : 341.16 = 341.16 : x
2. Step 2: Convert to fraction form
   220.69/341.16 = 341.16/x
3. Step 3: Cross multiply
   220.69x = 341.16 × 341.16
4. Step 4: Simplify right side
   220.69x = 116,387.59
5. Step 5: Solve for x
   x = 116,387.59/220.69
6. Step 6: Final answer
   x = 527.39