What is the setting of Forward the Foundation by Isaac Asimov?

Like Prelude to Foundation, Forward the Foundation is set in the final years of the Galactic Era, beginning during the rocky reign of the Emperor Cleon I and continuing through the years of rapid decline under a military junta and two weak emperors. Mathematician Hari Seldon, who in Prelude to Foundation comes as a young man to the planet Trantor, the Galactic center, to deliver a theoretical paper about "psychohistory" before the Decennial Mathematics Convention, has matured into a respected scientist with important contacts in the Imperial Court. Emperor Cleon I continues to reign ten years later and still wants Hari to turn this theory into a practical tool to shore up his reign.