Finding the Third Proportional to 287,834 and 610,744

Step by Step Solution

1. Step 1: Write the proportion equation
   287,834 : 610,744 = 610,744 : x
2. Step 2: Convert to fraction form
   287,834/610,744 = 610,744/x
3. Step 3: Cross multiply
   287,834x = 610,744 × 610,744
4. Step 4: Simplify right side
   287,834x = 373,008,233,536
5. Step 5: Solve for x
   x = 373,008,233,536/287,834
6. Step 6: Final answer
   x = 1,295,914.43