Finding the Third Proportional to 2,390 and 3,228

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390 : 3,228 = 3,228 : x
2. Step 2: Convert to fraction form
   2,390/3,228 = 3,228/x
3. Step 3: Cross multiply
   2,390x = 3,228 × 3,228
4. Step 4: Simplify right side
   2,390x = 10,419,984
5. Step 5: Solve for x
   x = 10,419,984/2,390
6. Step 6: Final answer
   x = 4,359.83