Finding the Third Proportional to 528.75 and 1,144.31

Step by Step Solution

1. Step 1: Write the proportion equation
   528.75 : 1,144.31 = 1,144.31 : x
2. Step 2: Convert to fraction form
   528.75/1,144.31 = 1,144.31/x
3. Step 3: Cross multiply
   528.75x = 1,144.31 × 1,144.31
4. Step 4: Simplify right side
   528.75x = 1,309,451.10
5. Step 5: Solve for x
   x = 1,309,451.10/528.75
6. Step 6: Final answer
   x = 2,476.50