  Within the limits of the present cosmological observations in f(R,T) gravity
theory, we have analyzed a spherically symmetric space-time in 5D setting. The
field equations have been carefully studied considering reasonable cosmological
assumptions to obtain exact solutions. We have obtained an isotropic model
universe undergoing super-exponential expansion. It is predicted that the model
universe behaves like a dark energy (vacuum energy) model. In the present
scenario, the model evolves with a slow and uniform change of shape. It is
observed that the universe is close to or nearly flat. The model is free from
initial singularity and is predicted to approach the de-Sitter phase dominated
by vacuum energy or cosmological constant in the finite-time future. A
comprehensive discussion on the cosmological parameters obtained in view of the
recent studies is presented in detail with graphs.
