Finding the Third Proportional to 669,300 and 1,383,605

Step by Step Solution

1. Step 1: Write the proportion equation
   669,300 : 1,383,605 = 1,383,605 : x
2. Step 2: Convert to fraction form
   669,300/1,383,605 = 1,383,605/x
3. Step 3: Cross multiply
   669,300x = 1,383,605 × 1,383,605
4. Step 4: Simplify right side
   669,300x = 1,914,362,796,025
5. Step 5: Solve for x
   x = 1,914,362,796,025/669,300
6. Step 6: Final answer
   x = 2,860,246.22