Finding the Third Proportional to 1,440 and 3,892

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440 : 3,892 = 3,892 : x
2. Step 2: Convert to fraction form
   1,440/3,892 = 3,892/x
3. Step 3: Cross multiply
   1,440x = 3,892 × 3,892
4. Step 4: Simplify right side
   1,440x = 15,147,664
5. Step 5: Solve for x
   x = 15,147,664/1,440
6. Step 6: Final answer
   x = 10,519.21