Finding the Third Proportional to 685,874 and 1,018,876

Step by Step Solution

1. Step 1: Write the proportion equation
   685,874 : 1,018,876 = 1,018,876 : x
2. Step 2: Convert to fraction form
   685,874/1,018,876 = 1,018,876/x
3. Step 3: Cross multiply
   685,874x = 1,018,876 × 1,018,876
4. Step 4: Simplify right side
   685,874x = 1,038,108,303,376
5. Step 5: Solve for x
   x = 1,038,108,303,376/685,874
6. Step 6: Final answer
   x = 1,513,555.41