how to pass parameter between three form

 public partial class frmShiptoLocation : Form   
{

        private PoShipToAddress _currentShipToAddress;

        public PoShipToAddress CurrentShipToAddress
        {
            get { return _currentShipToAddress; }
            set { _currentShipToAddress = value; }
        }     
       
}
access data using forms public property as follows