Finding the Third Proportional to 419,998.50 and 905,607

Step by Step Solution

1. Step 1: Write the proportion equation
   419,998.50 : 905,607 = 905,607 : x
2. Step 2: Convert to fraction form
   419,998.50/905,607 = 905,607/x
3. Step 3: Cross multiply
   419,998.50x = 905,607 × 905,607
4. Step 4: Simplify right side
   419,998.50x = 820,124,038,449
5. Step 5: Solve for x
   x = 820,124,038,449/419,998.50
6. Step 6: Final answer
   x = 1,952,683.26