Finding the Third Proportional to 401,816 and 845,008

Step by Step Solution

1. Step 1: Write the proportion equation
   401,816 : 845,008 = 845,008 : x
2. Step 2: Convert to fraction form
   401,816/845,008 = 845,008/x
3. Step 3: Cross multiply
   401,816x = 845,008 × 845,008
4. Step 4: Simplify right side
   401,816x = 714,038,520,064
5. Step 5: Solve for x
   x = 714,038,520,064/401,816
6. Step 6: Final answer
   x = 1,777,028.59