Finding the Third Proportional to 668,020 and 1,401,686

Step by Step Solution

1. Step 1: Write the proportion equation
   668,020 : 1,401,686 = 1,401,686 : x
2. Step 2: Convert to fraction form
   668,020/1,401,686 = 1,401,686/x
3. Step 3: Cross multiply
   668,020x = 1,401,686 × 1,401,686
4. Step 4: Simplify right side
   668,020x = 1,964,723,642,596
5. Step 5: Solve for x
   x = 1,964,723,642,596/668,020
6. Step 6: Final answer
   x = 2,941,115.00