Asking about your second cousin's cousin's cousin is asking about a complex but poorly defined relationship. Are the cousins of the second cousin his first cousin, second cousin, fifth cousin twice removed, or something else.
It is likely that a cousin's cousin's cousin is not related to you at all.
It is also possible that your second cousin's first cousin's first cousin is also your second cousin.
Your daughter and your second cousin are second cousins, once removed.
Your cousin's children are your second cousins
Your cousin's baby would be your second cousin
Your granddaughter and your second cousin are second cousins, twice removed, to each other.
Your grandson and your first cousin are first cousins, twice removed. Your grandson and your second cousin are second cousins, twice removed. and so forth.
Your children and your first cousin's children are second cousins.
Your cousin's daughter is your first cousin once removed. Your daughter and your cousin's daughter would be second cousins.
He would be your second cousin.
You are second cousins
They would be second cousins.
Your second cousin and your grandson are second cousins, twice removed.
Your first cousin's daughter is first cousin once removed to your grandson, and he to her. Your second cousin's daughter is second cousin once removed to your grandson, and he to her.