Finding the Third Proportional to 685,348 and 1,485,104

Step by Step Solution

1. Step 1: Write the proportion equation
   685,348 : 1,485,104 = 1,485,104 : x
2. Step 2: Convert to fraction form
   685,348/1,485,104 = 1,485,104/x
3. Step 3: Cross multiply
   685,348x = 1,485,104 × 1,485,104
4. Step 4: Simplify right side
   685,348x = 2,205,533,890,816
5. Step 5: Solve for x
   x = 2,205,533,890,816/685,348
6. Step 6: Final answer
   x = 3,218,122.60