Finding the Third Proportional to 250,589 and 521,914

Step by Step Solution

1. Step 1: Write the proportion equation
   250,589 : 521,914 = 521,914 : x
2. Step 2: Convert to fraction form
   250,589/521,914 = 521,914/x
3. Step 3: Cross multiply
   250,589x = 521,914 × 521,914
4. Step 4: Simplify right side
   250,589x = 272,394,223,396
5. Step 5: Solve for x
   x = 272,394,223,396/250,589
6. Step 6: Final answer
   x = 1,087,015.88