Finding the Third Proportional to 646,568 and 1,413,520

Step by Step Solution

1. Step 1: Write the proportion equation
   646,568 : 1,413,520 = 1,413,520 : x
2. Step 2: Convert to fraction form
   646,568/1,413,520 = 1,413,520/x
3. Step 3: Cross multiply
   646,568x = 1,413,520 × 1,413,520
4. Step 4: Simplify right side
   646,568x = 1,998,038,790,400
5. Step 5: Solve for x
   x = 1,998,038,790,400/646,568
6. Step 6: Final answer
   x = 3,090,222.20