The entry that Yacht Doc should make on October 25 is a $200,000 credit to Unearned revenue and a $200,000 debit to Cash.
This is an account that includes amounts that a company has received goods it hasn't sold or services it hasn't given out yet.
Yacht Doc had not yet delivered the yacht nor provided any services and yet they were paid. This will therefore go to the unearned revenue account as a credit because this is a liability account.
Find out more on Unearned revenue at https://brainly.com/question/24852569.