MONTREAL - Led by wireless gains at Videotron, Quebecor saw third quarter profits jump by almost 5%, the company reported Thursday.Net income attributable to shareholders for the period reached $186.7 million, up from $178.4 million in the same period last year, a favourable variance of $8.3 million.Revenues of $1.06 billion grew 1.7% from the third quarter of 2017. Revenues increased in Telecommunications ($30.2 million or 3.6%), but fell in Media ($15.9 million or ‑8.5%) and in Sports and Entertainment ($2.2 million or ‑3.9%). Adjusted income from continuing operating activities increased 36.9% to $142 million, which the company said reflected the increase...