Finding the Third Proportional to 668,046 and 1,401,738

Step by Step Solution

1. Step 1: Write the proportion equation
   668,046 : 1,401,738 = 1,401,738 : x
2. Step 2: Convert to fraction form
   668,046/1,401,738 = 1,401,738/x
3. Step 3: Cross multiply
   668,046x = 1,401,738 × 1,401,738
4. Step 4: Simplify right side
   668,046x = 1,964,869,420,644
5. Step 5: Solve for x
   x = 1,964,869,420,644/668,046
6. Step 6: Final answer
   x = 2,941,218.75