Finding the Third Proportional to 1,020.75 and 2,236.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020.75 : 2,236.31 = 2,236.31 : x
2. Step 2: Convert to fraction form
   1,020.75/2,236.31 = 2,236.31/x
3. Step 3: Cross multiply
   1,020.75x = 2,236.31 × 2,236.31
4. Step 4: Simplify right side
   1,020.75x = 5,001,093.60
5. Step 5: Solve for x
   x = 5,001,093.60/1,020.75
6. Step 6: Final answer
   x = 4,899.43