Finding the Third Proportional to 678,966 and 1,488,504

Step by Step Solution

1. Step 1: Write the proportion equation
   678,966 : 1,488,504 = 1,488,504 : x
2. Step 2: Convert to fraction form
   678,966/1,488,504 = 1,488,504/x
3. Step 3: Cross multiply
   678,966x = 1,488,504 × 1,488,504
4. Step 4: Simplify right side
   678,966x = 2,215,644,158,016
5. Step 5: Solve for x
   x = 2,215,644,158,016/678,966
6. Step 6: Final answer
   x = 3,263,262.31