(3) The commissioner shall not approve any such reorganization plan or reinsurance agreement which does not determine the amount of and make adequate provision for paying to members of such mutual insurer, reasonable compensation for their equities as owners of such insurer, such compensation to be apportioned to members as identified and in the manner prescribed in RCW 48.09.360. The procedure for approval by the commissioner of any such reorganization plan or reinsurance agreement shall be the same as the procedure for approval by the commissioner of a plan of merger or consolidation under RCW 48.31.010. Approval at a corporate meeting of members by two-thirds of the then members of a domestic mutual insurer who vote on the plan or agreement pursuant to such notice and procedure as was approved by the commissioner shall constitute approval of any such reorganization plan or reinsurance agreement by the insurer's members.