Make it informative
However well you may write, you can persuade your readers (in this case, your professor) only by making your essay rich in information. So carry out extensive research and find as many details as possible. You must have enough evidence to support all your claims.

Use relevant sources
Again, cramming your essay with unreliable and irrelevant data is just going to take you farther from your dream of making it to the top with your essay. So make sure that you take information from scholarly sources.

Cite it well
You cannot really expect that the proposal essay topic that you have taken up has never been pitched by anyone else. The facts that you are going to use in your proposal essay can give rise to plagiarism. Use citations and create a reference list to avoid any penalization for piracy.

Use your vocabulary skills
Apart from the details, the one weapon that can convince our readers is a well-written piece. Use your words to create a compelling piece. Do not overuse words and steer clear from generic words. Instead, go for better synonyms. Also, write the essay using a formal tone.