11. (3 points) Below is a triangular number array arranged according to a certain rule. The third number from the left in the 1994th row is $\qquad$
【Solution】Solution: $1+2+3+\cdots+1992$
$$
\begin{array}{l}
=(1+1992) \times 1992 \div 2 \\
=1985028 ;
\end{array}
$$

Therefore, the answer is: 1985028 .