Finding the Third Proportional to 668,016 and 1,401,678

Step by Step Solution

1. Step 1: Write the proportion equation
   668,016 : 1,401,678 = 1,401,678 : x
2. Step 2: Convert to fraction form
   668,016/1,401,678 = 1,401,678/x
3. Step 3: Cross multiply
   668,016x = 1,401,678 × 1,401,678
4. Step 4: Simplify right side
   668,016x = 1,964,701,215,684
5. Step 5: Solve for x
   x = 1,964,701,215,684/668,016
6. Step 6: Final answer
   x = 2,941,099.04