Finding the Third Proportional to 574,912 and 1,209,405

Step by Step Solution

1. Step 1: Write the proportion equation
   574,912 : 1,209,405 = 1,209,405 : x
2. Step 2: Convert to fraction form
   574,912/1,209,405 = 1,209,405/x
3. Step 3: Cross multiply
   574,912x = 1,209,405 × 1,209,405
4. Step 4: Simplify right side
   574,912x = 1,462,660,454,025
5. Step 5: Solve for x
   x = 1,462,660,454,025/574,912
6. Step 6: Final answer
   x = 2,544,146.68