Finding the Third Proportional to 668,000 and 1,401,608

Step by Step Solution

1. Step 1: Write the proportion equation
   668,000 : 1,401,608 = 1,401,608 : x
2. Step 2: Convert to fraction form
   668,000/1,401,608 = 1,401,608/x
3. Step 3: Cross multiply
   668,000x = 1,401,608 × 1,401,608
4. Step 4: Simplify right side
   668,000x = 1,964,504,985,664
5. Step 5: Solve for x
   x = 1,964,504,985,664/668,000
6. Step 6: Final answer
   x = 2,940,875.73