Finding the Third Proportional to 1,439 and 2,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439 : 2,162.50 = 2,162.50 : x
2. Step 2: Convert to fraction form
   1,439/2,162.50 = 2,162.50/x
3. Step 3: Cross multiply
   1,439x = 2,162.50 × 2,162.50
4. Step 4: Simplify right side
   1,439x = 4,676,406.25
5. Step 5: Solve for x
   x = 4,676,406.25/1,439
6. Step 6: Final answer
   x = 3,249.76