Finding the Third Proportional to 2,772 and 4,238

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772 : 4,238 = 4,238 : x
2. Step 2: Convert to fraction form
   2,772/4,238 = 4,238/x
3. Step 3: Cross multiply
   2,772x = 4,238 × 4,238
4. Step 4: Simplify right side
   2,772x = 17,960,644
5. Step 5: Solve for x
   x = 17,960,644/2,772
6. Step 6: Final answer
   x = 6,479.31