Finding the Third Proportional to 685,362 and 1,485,132

Step by Step Solution

1. Step 1: Write the proportion equation
   685,362 : 1,485,132 = 1,485,132 : x
2. Step 2: Convert to fraction form
   685,362/1,485,132 = 1,485,132/x
3. Step 3: Cross multiply
   685,362x = 1,485,132 × 1,485,132
4. Step 4: Simplify right side
   685,362x = 2,205,617,057,424
5. Step 5: Solve for x
   x = 2,205,617,057,424/685,362
6. Step 6: Final answer
   x = 3,218,178.21