The Council may, by affirmative vote of two-thirds (2/3) members, submit any proposed amendment to this Charter to the electors and, upon receipt of petitions signed by ten percent of the electors of the Municipality setting forth any proposed amendment to the Charter, Council shall submit such proposed amendment to the electors. The Council shall determine the manner of the submission of any proposed amendment to the electors to the extent that such submission is not governed by the Constitution and the laws of Ohio. If any such proposed amendments shall be approved by a majority of the electors voting thereon, it shall become a part of this Charter; except that if two or more inconsistent proposed amendments on the same subject shall be submitted at the same election, only the one of such amendments receiving the largest affirmative vote, not less than a majority, shall become a part of the Charter.