Finding the Third Proportional to 1,243.75 and 1,788.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243.75 : 1,788.25 = 1,788.25 : x
2. Step 2: Convert to fraction form
   1,243.75/1,788.25 = 1,788.25/x
3. Step 3: Cross multiply
   1,243.75x = 1,788.25 × 1,788.25
4. Step 4: Simplify right side
   1,243.75x = 3,197,838.06
5. Step 5: Solve for x
   x = 3,197,838.06/1,243.75
6. Step 6: Final answer
   x = 2,571.13