Yes! As long as the online course is fully approved by the Georgia Real Estate Commission, you can take the course online.
In fact, most students prefer to take the course online since it allows them to take the course at their own pace, and on their own time.
It is entirely possible to complete the 75-hour course in under one week.
If you take the course in-person at a local real estate school, it will most likely take much longer to complete the course.