Profit rose to $1.07 billion from $733.3 million a year earlier, while sales rose 57 percent to $4.23 billion.
When Google reported second quarter results in July, its expenses were higher than analysts had expected, in part because the company continued to hire aggressively. The results sent Google shares on a short-lived downward slide. At the time, Mr. Schmidt promised to watch Google’s hiring pace. But Google’s hiring accelerated in the most recent quarter, as the company added 2,130 workers, to end the period with 15,916 employees.