If a petition filed under the provisions of section 58-15-01 is found sufficient, the board of township supervisors, at the time the general township tax levy is made, shall levy upon all the property within the unincorporated townsite from which the petition is received the specific amount fixed by the board as the compensation of the police officer. The amount so levied must be certified to the county auditor when other township taxes are certified. The county auditor shall calculate the mill levy necessary to raise the sum and extend the same on the tax list of the township against the property within the unincorporated townsite in a column entitled "police tax".