Ecolab Inc., reported an 11% per-share increase in third-quarter profit Friday, citing strength in its core food services and hospitality businesses. The cleaning, sanitation and maintenance company said net income for the three months ended Sept. 30, rose to $103.7 million, or 40 cents a share, up from a year-ago profit of $94.9 million, or 36 cents a share. Sales rose 7% in the quarter to $1.16 billion from $1.1 billion in the same period a year earlier, with North America, Asia Pacific an...