Finding the Third Proportional to 419,856 and 899,610

Step by Step Solution

1. Step 1: Write the proportion equation
   419,856 : 899,610 = 899,610 : x
2. Step 2: Convert to fraction form
   419,856/899,610 = 899,610/x
3. Step 3: Cross multiply
   419,856x = 899,610 × 899,610
4. Step 4: Simplify right side
   419,856x = 809,298,152,100
5. Step 5: Solve for x
   x = 809,298,152,100/419,856
6. Step 6: Final answer
   x = 1,927,561.24