Final answer:
A geometry proof involving midpoints. However, the information provided is incomplete, making it impossible to provide a full flowchart proof without additional specifics.
Step-by-step explanation:
A geometry problem involving midpoints and requires assistance in completing a flowchart proof. Since the proof involves the properties of midpoints and line segments, we could establish that DD is the midpoint of AC. This means that AD is congruent to DC.
To apply this information in a flowchart proof, one would need to state the given information, apply the definition of a midpoint, and use properties of congruent segments to reach further conclusions, finally completing the proof.
Unfortunately, the details provided in the question are incomplete, and thus it is not possible to construct the entire flowchart proof. Additional information on the specific statements and reasons used in the flowchart would be necessary to provide an accurate and professional answer.