Finding the Third Proportional to 655,212 and 1,401,509

Step by Step Solution

1. Step 1: Write the proportion equation
   655,212 : 1,401,509 = 1,401,509 : x
2. Step 2: Convert to fraction form
   655,212/1,401,509 = 1,401,509/x
3. Step 3: Cross multiply
   655,212x = 1,401,509 × 1,401,509
4. Step 4: Simplify right side
   655,212x = 1,964,227,477,081
5. Step 5: Solve for x
   x = 1,964,227,477,081/655,212
6. Step 6: Final answer
   x = 2,997,850.28