The formula for the volume of a triangular prism is:
V = (1/2) * base * height * length
where "base" and "height" are the dimensions of the triangular face and "length" is the length of the prism.
Substituting the given values, we get:
V = (1/2) * 18.5 * 18.1 * 9.1
V = 1,513.985 m^3
Therefore, the volume of the triangular prism is approximately 1,513.985 cubic meters.