This work shows that the percentage contribution to the growth of the Solow Residual economic is a disproportionate amount in real terms. For this reason, there is a new calculation basis of technical progress in the function Cobb-Douglas production and demonstrates that this can be expressed as Harrod´s theorem more technical progress. This technical progress is compared with the traditional Solow Residual for the United States, Colombia and 15 European Union countries. We conclude that technical progress does not exceed the rate of economic growth contrary to Solow's seminal approach.