Finding the Third Proportional to 685,562 and 1,485,536

Step by Step Solution

1. Step 1: Write the proportion equation
   685,562 : 1,485,536 = 1,485,536 : x
2. Step 2: Convert to fraction form
   685,562/1,485,536 = 1,485,536/x
3. Step 3: Cross multiply
   685,562x = 1,485,536 × 1,485,536
4. Step 4: Simplify right side
   685,562x = 2,206,817,207,296
5. Step 5: Solve for x
   x = 2,206,817,207,296/685,562
6. Step 6: Final answer
   x = 3,218,989.98