Show link to buddypress profile on listing page

I have this code from an old support ticket to be added on the funcions.php file:

add_action( 'geodir_details_main_content', 'my_show_author_mod', 45 );
function my_show_author_mod() {
global $post; 

$current_posttype = geodir_get_current_posttype();

	$myauthor = get_the_author();
	$myauthorlink = get_author_posts_url( get_the_author_meta( 'ID' ) ).'?post_type='.$current_posttype;
	echo '<p class="clearfix">Mapedo por <a href="' .$myauthorlink . '">' . $myauthor . '</a></p>';
}
?>

I would like the link to go to the Buddypress profile of the person who made the listing.

Could you help me with that?

Thanks a lot!