How to get two logos side by side

You can use minipages:

\documentclass{article}
\usepackage{graphicx}
\usepackage{showframe}   %% just for demo
\begin{document}
  \noindent
  \begin{minipage}[b]{0.2\textwidth}    %% b or t, default is c
    \includegraphics[width=\linewidth]{example-image-a}
  \end{minipage}%
  \begin{minipage}[b][2cm]{0.6\textwidth}
    \centering\bfseries\large
    Some text comes here \vfill
    Some thing here \vfill
    Some text
  \end{minipage}%
  \begin{minipage}[b]{0.2\textwidth}
    \includegraphics[width=\linewidth]{example-image-b}
  \end{minipage}

\end{document}

Here is a MWE:

\documentclass[letterpaper]{article}
\usepackage{graphicx}
\usepackage{array}
\usepackage{calc}
\usepackage{mwe}
\begin{document}
  \begin{center}
  \setlength{\tabcolsep}{0pt}
  \begin{tabular}{>{\raggedleft}m{2.5cm}>{\centering}m{\dimexpr\textwidth - 5cm\relax}>{\raggedright}m{2.5cm}}
  \includegraphics[width=\linewidth]{example-image}%
  &%
  \textbf{\large INSTITUTO POLITECNICO NACIONAL} \\[5pt]%
  \textbf{\large ESCUELA SUPERIOR DE COMPUTO}%
  &%
  \includegraphics[width=\linewidth]{example-image} %
  \end{tabular}
  \end{center}
\end{document}