Finding the Third Proportional to 669,289 and 1,019,618

Step by Step Solution

1. Step 1: Write the proportion equation
   669,289 : 1,019,618 = 1,019,618 : x
2. Step 2: Convert to fraction form
   669,289/1,019,618 = 1,019,618/x
3. Step 3: Cross multiply
   669,289x = 1,019,618 × 1,019,618
4. Step 4: Simplify right side
   669,289x = 1,039,620,865,924
5. Step 5: Solve for x
   x = 1,039,620,865,924/669,289
6. Step 6: Final answer
   x = 1,553,321.31