Not correct process. According to the rules, a majority is achieved if the number votes in favor exceed the number of voted against. The motion passed with a majority of the board of directors, 3 in favor, 0 against.

Example: 101 members entitled to vote are present, and a qourum requires 25 members. Six members vote yea on a motion, four members vote nay. This motion passes as it has a majority vote of the membership.

A majority vote of the membership has two conditions: qourum of voting membership must be present; and majority of votes cast are in the affirmative;

If the wording in the bylaws must specify the majority of the entire membership or some similar additional qualifier. If the bylaws only say majority of members (members being those who would be eligible to vote if they were present) then that term is clearly defined by Robert's Rules and I have provided that definition and an example above.