Finding the Third Proportional to 2,790 and 3,270

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790 : 3,270 = 3,270 : x
2. Step 2: Convert to fraction form
   2,790/3,270 = 3,270/x
3. Step 3: Cross multiply
   2,790x = 3,270 × 3,270
4. Step 4: Simplify right side
   2,790x = 10,692,900
5. Step 5: Solve for x
   x = 10,692,900/2,790
6. Step 6: Final answer
   x = 3,832.58