Finding the Third Proportional to 401,818 and 845,012

Step by Step Solution

1. Step 1: Write the proportion equation
   401,818 : 845,012 = 845,012 : x
2. Step 2: Convert to fraction form
   401,818/845,012 = 845,012/x
3. Step 3: Cross multiply
   401,818x = 845,012 × 845,012
4. Step 4: Simplify right side
   401,818x = 714,045,280,144
5. Step 5: Solve for x
   x = 714,045,280,144/401,818
6. Step 6: Final answer
   x = 1,777,036.57