Mich. Comp. Laws § 120.7: Formation of district; canvass and declaration of election results; three-fifths vote.

Sec. 7.

Within 5 days after such election the board of supervisors shall canvass the returns and if at such election 3/5 of the voters voting upon such proposition shall vote in favor of the formation of such district, the board of county supervisors shall so declare in its canvass of the returns of such election and such voting district shall then be and become a municipal corporation of the state of Michigan and the name of such port district shall be "port of ..............." (inserting the name appearing on the ballot).