Finding the Third Proportional to 487,917 and 1,057,284

Step by Step Solution

1. Step 1: Write the proportion equation
   487,917 : 1,057,284 = 1,057,284 : x
2. Step 2: Convert to fraction form
   487,917/1,057,284 = 1,057,284/x
3. Step 3: Cross multiply
   487,917x = 1,057,284 × 1,057,284
4. Step 4: Simplify right side
   487,917x = 1,117,849,456,656
5. Step 5: Solve for x
   x = 1,117,849,456,656/487,917
6. Step 6: Final answer
   x = 2,291,064.78