Finding the Third Proportional to 763,338 and 1,036,686

Step by Step Solution

1. Step 1: Write the proportion equation
   763,338 : 1,036,686 = 1,036,686 : x
2. Step 2: Convert to fraction form
   763,338/1,036,686 = 1,036,686/x
3. Step 3: Cross multiply
   763,338x = 1,036,686 × 1,036,686
4. Step 4: Simplify right side
   763,338x = 1,074,717,862,596
5. Step 5: Solve for x
   x = 1,074,717,862,596/763,338
6. Step 6: Final answer
   x = 1,407,918.72