Finding the Third Proportional to 401,817 and 845,010

Step by Step Solution

1. Step 1: Write the proportion equation
   401,817 : 845,010 = 845,010 : x
2. Step 2: Convert to fraction form
   401,817/845,010 = 845,010/x
3. Step 3: Cross multiply
   401,817x = 845,010 × 845,010
4. Step 4: Simplify right side
   401,817x = 714,041,900,100
5. Step 5: Solve for x
   x = 714,041,900,100/401,817
6. Step 6: Final answer
   x = 1,777,032.58