Create the TimeSheet table (tblTimeSheet)

In the Relationships, Add the TimeSheet table (tsTimeSheet)

Rearrange the tables so that you can join the Employee and Project tables without crossing over the relationship lines (you may need to swap around tblProject and tblClient), and line up the PKs with the FKs.

Join the EmpID in tblEmployee (we write this in object notation as tblEmployee.EmpId) to tblTimeSheet.EmpID. (Make sure you drag from tblEmployee.EmpID to tblTimeSheet.EmpID), then Enforce Referential Integrity

Join the tblProject.ProjectId to tblTimeSheet.ProjectID. (Make sure you drag from tblProject.ProjectId totblTimeSheet.ProjectID), then Enforce Referential Integrity

Your completed Extended Entity Relationshp Diagram (E-ERD) should look as follows