Finding the Third Proportional to 800.25 and 1,284

Step by Step Solution

1. Step 1: Write the proportion equation
   800.25 : 1,284 = 1,284 : x
2. Step 2: Convert to fraction form
   800.25/1,284 = 1,284/x
3. Step 3: Cross multiply
   800.25x = 1,284 × 1,284
4. Step 4: Simplify right side
   800.25x = 1,648,656
5. Step 5: Solve for x
   x = 1,648,656/800.25
6. Step 6: Final answer
   x = 2,060.18