Finding the Third Proportional to 687,168 and 1,027,578

Step by Step Solution

1. Step 1: Write the proportion equation
   687,168 : 1,027,578 = 1,027,578 : x
2. Step 2: Convert to fraction form
   687,168/1,027,578 = 1,027,578/x
3. Step 3: Cross multiply
   687,168x = 1,027,578 × 1,027,578
4. Step 4: Simplify right side
   687,168x = 1,055,916,546,084
5. Step 5: Solve for x
   x = 1,055,916,546,084/687,168
6. Step 6: Final answer
   x = 1,536,620.66