page title, parent tilte and grand parent title

possibly build on get_ancestors();

example:

if( is_page() ) :
    echo $post->post_title;
    if( $ancs = get_ancestors($post->ID,'page') ) {
        foreach( $ancs as $anc ) {
        echo ' -> ' . get_page( $anc )->post_title;
        }
    }   
endif;