what is the square root of 9999999999999999999999999999999

$${\mathtt{3\,162\,277\,660\,168\,379.331\: \!998\: \!893\: \!544\: \!432\: \!6}}{\mathtt{\,\times\,}}{\mathtt{3\,162\,277\,660\,168\,379.331\: \!998\: \!893\: \!544\: \!432\: \!6}} = {\mathtt{9\,999\,999\,999\,999\,999\,999\,999\,999\,999\,999.250\: \!326\: \!933\: \!348\: \!238\: \!3}}$$