For this case we propose a rule of three:
110.2 million -------------> 100%
x --------------------------------------> 17.7%
Where the variable "x" represents the number of households (in millions) that watched the finals of a popular reality series.
![x = \frac {17.7 * 110.2} {100}\\x = \frac {1950.54} {100}\\x = 19.5054](https://img.qammunity.org/2020/formulas/mathematics/college/3jjdi9yy7fwuucb9h7b690z2tp9718yzz8.png)
Thus, a total of 19.5054 million homes watched the finals of a popular reality series.
Answer:
19.5054 million homes watched the finals of a popular reality series.