Finding the Third Proportional to 2,188 and 3,210

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188 : 3,210 = 3,210 : x
2. Step 2: Convert to fraction form
   2,188/3,210 = 3,210/x
3. Step 3: Cross multiply
   2,188x = 3,210 × 3,210
4. Step 4: Simplify right side
   2,188x = 10,304,100
5. Step 5: Solve for x
   x = 10,304,100/2,188
6. Step 6: Final answer
   x = 4,709.37