Given:
No of users in February is 45,000 and in october its 60,000.
[tex]P=45000(\frac{4}{3})^{(\frac{3}{2})^t}[/tex]t=2
[tex]P=45000(\frac{4}{3})^3[/tex][tex]P=45000(\frac{64}{27})[/tex][tex]P=5000(\frac{64}{3})[/tex][tex]P=106666.6667[/tex]Therefore, approximate no of users after 2 years is 106667.