Finding the Third Proportional to 426,589 and 905,665

Step by Step Solution

1. Step 1: Write the proportion equation
   426,589 : 905,665 = 905,665 : x
2. Step 2: Convert to fraction form
   426,589/905,665 = 905,665/x
3. Step 3: Cross multiply
   426,589x = 905,665 × 905,665
4. Step 4: Simplify right side
   426,589x = 820,229,092,225
5. Step 5: Solve for x
   x = 820,229,092,225/426,589
6. Step 6: Final answer
   x = 1,922,761.94