Finding the Third Proportional to 685,940 and 1,018,960

Step by Step Solution

1. Step 1: Write the proportion equation
   685,940 : 1,018,960 = 1,018,960 : x
2. Step 2: Convert to fraction form
   685,940/1,018,960 = 1,018,960/x
3. Step 3: Cross multiply
   685,940x = 1,018,960 × 1,018,960
4. Step 4: Simplify right side
   685,940x = 1,038,279,481,600
5. Step 5: Solve for x
   x = 1,038,279,481,600/685,940
6. Step 6: Final answer
   x = 1,513,659.33