Perfectly correct.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
My dictionary says the noun 'participation' is an uncountable one.It's correct. There's nothing that says an uncountable noun can't take the. An uncountable noun can't take a or an. Maybe you were confusing the two.
Is it correct to use 'the participation' in the original sentence?