You can't extrapolate historical population trends and expect them to be remotely accurate. Most current data shows population plateauing at around 10 Billion.

Most of the westernized world's population (US, Japan, Western Europe, Australia, etc) is either stagnant or decreasing - and almost every other country (China, India, Latin America) is moving towards that.

And the technology has more than made up for our population growth. Almost everyone would agree that the 7 Billion people we have today are far better off (on average) than the 1 Billion people we had 200 years ago.