Jim's family recently moved to a new city. The city's population has been growing, and based on recent trends, Jim expects it to continue growing exponentially. This table shows the expected population in the next two years.

Time (years) Population
1 840,000
2 882,000

Find an expression for P(t), the city's population t years from now. Write your answer in the form P(t)=a(b)^t, where a and b are integers or decimals. Do not round.
P(t)= ______