Finding the Third Proportional to 419,064 and 905,072

Step by Step Solution

1. Step 1: Write the proportion equation
   419,064 : 905,072 = 905,072 : x
2. Step 2: Convert to fraction form
   419,064/905,072 = 905,072/x
3. Step 3: Cross multiply
   419,064x = 905,072 × 905,072
4. Step 4: Simplify right side
   419,064x = 819,155,325,184
5. Step 5: Solve for x
   x = 819,155,325,184/419,064
6. Step 6: Final answer
   x = 1,954,726.07