Finding the Third Proportional to 623,250 and 1,339,605

Step by Step Solution

1. Step 1: Write the proportion equation
   623,250 : 1,339,605 = 1,339,605 : x
2. Step 2: Convert to fraction form
   623,250/1,339,605 = 1,339,605/x
3. Step 3: Cross multiply
   623,250x = 1,339,605 × 1,339,605
4. Step 4: Simplify right side
   623,250x = 1,794,541,556,025
5. Step 5: Solve for x
   x = 1,794,541,556,025/623,250
6. Step 6: Final answer
   x = 2,879,328.61