Finding the Third Proportional to 685,622 and 1,476,605

Step by Step Solution

1. Step 1: Write the proportion equation
   685,622 : 1,476,605 = 1,476,605 : x
2. Step 2: Convert to fraction form
   685,622/1,476,605 = 1,476,605/x
3. Step 3: Cross multiply
   685,622x = 1,476,605 × 1,476,605
4. Step 4: Simplify right side
   685,622x = 2,180,362,326,025
5. Step 5: Solve for x
   x = 2,180,362,326,025/685,622
6. Step 6: Final answer
   x = 3,180,123.05