Finding the Third Proportional to 211.69 and 463.69

Step by Step Solution

1. Step 1: Write the proportion equation
   211.69 : 463.69 = 463.69 : x
2. Step 2: Convert to fraction form
   211.69/463.69 = 463.69/x
3. Step 3: Cross multiply
   211.69x = 463.69 × 463.69
4. Step 4: Simplify right side
   211.69x = 215,006.10
5. Step 5: Solve for x
   x = 215,006.10/211.69
6. Step 6: Final answer
   x = 1,015.68