Packaging Corporation of America reported third quarter 2019 net income of $180 million, or $1.89 per share, and net income of $182 million, or $1.92 per share, excluding special items. Third quarter net sales were $1.8 billion in 2019 and 2018.   In the Packaging segment, corrugated products shipments were up 1.9% in total and per day, over last year’s third quarter. Containerboard production was 1,070,000 tons, and containerboard inventory was down 30,000 tons from the second quarter of 2019 a...