[B-Chan]

FYI: In Marxian terms, the working class (aka the proletariat) is that class that owns no property and has no means of support other than trading their labor-power for wages. The bourgeoisie is the property-owning middle class — those who own their own businesses (shopkeepers, family businesses, etc.) and live off the investments they have made in them rather than wages. The capitalist class is the class that obtains wealth by exploiting the labor-power of the proletariat acting upon the productive capital (aka the “means of production”) that they own rather than by their own productive activity.

[AndyJackson]

The bourgeoisie is the property-owning middle class

Obviously you haven't spent time hanging around US college campuses or your would be more au fait on your Marxist ideology:

The class of people in bourgeois society who own the social means of production as their Private Property, i.e., as capital. See The Communist Manifesto for Marx and Engels' description of the historical role of the bourgeoisie.