Finding the Third Proportional to 485,115 and 1,036,729

Step by Step Solution

1. Step 1: Write the proportion equation
   485,115 : 1,036,729 = 1,036,729 : x
2. Step 2: Convert to fraction form
   485,115/1,036,729 = 1,036,729/x
3. Step 3: Cross multiply
   485,115x = 1,036,729 × 1,036,729
4. Step 4: Simplify right side
   485,115x = 1,074,807,019,441
5. Step 5: Solve for x
   x = 1,074,807,019,441/485,115
6. Step 6: Final answer
   x = 2,215,571.61