Finding the Third Proportional to 685,560 and 1,485,532

Step by Step Solution

1. Step 1: Write the proportion equation
   685,560 : 1,485,532 = 1,485,532 : x
2. Step 2: Convert to fraction form
   685,560/1,485,532 = 1,485,532/x
3. Step 3: Cross multiply
   685,560x = 1,485,532 × 1,485,532
4. Step 4: Simplify right side
   685,560x = 2,206,805,323,024
5. Step 5: Solve for x
   x = 2,206,805,323,024/685,560
6. Step 6: Final answer
   x = 3,218,982.03