Help Build A Gantt chart that displays 36 months

I have been working on creating a market entry plan for a fake landscaping business, El-Sayed Luxuries Landscaping. I have completed a “Projected Financial Statement Analysis (Pro Forma 3-Year Financial Plan)”including a“12 Month P& L” tab, “Year 1” tab, “Year 2 P&L” tab, and “Year 3 P&L” tab. The first year is monthly and the second and third year are presented quarterly.

The instructions call to create a Gantt chart that displays 36 months, using the Office Timeline tool or any other tool to produce a Gantt chart. Be sure to include rational 1-36 months

It also must outline multiple critical milestones. Please include a rationale for the Gantt chart.