Finding the Third Proportional to 668,040 and 1,401,726

Step by Step Solution

1. Step 1: Write the proportion equation
   668,040 : 1,401,726 = 1,401,726 : x
2. Step 2: Convert to fraction form
   668,040/1,401,726 = 1,401,726/x
3. Step 3: Cross multiply
   668,040x = 1,401,726 × 1,401,726
4. Step 4: Simplify right side
   668,040x = 1,964,835,779,076
5. Step 5: Solve for x
   x = 1,964,835,779,076/668,040
6. Step 6: Final answer
   x = 2,941,194.81