Finding the Third Proportional to 1,443.50 and 2,111.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.50 : 2,111.25 = 2,111.25 : x
2. Step 2: Convert to fraction form
   1,443.50/2,111.25 = 2,111.25/x
3. Step 3: Cross multiply
   1,443.50x = 2,111.25 × 2,111.25
4. Step 4: Simplify right side
   1,443.50x = 4,457,376.56
5. Step 5: Solve for x
   x = 4,457,376.56/1,443.50
6. Step 6: Final answer
   x = 3,087.90