What is the highest 2nd in (m) that has a Rank more than 2 and Points more than 249.3
CREATE TABLE "sapporo" (
  "rank" real,
  "name" text,
  "nationality" text,
  "1st_m" real,
  "2nd_m" real,
  "points" real,
  "overall_wc_points_rank" text
);
SELECT MAX("2nd_m") FROM "sapporo" WHERE "rank">2 AND "points">249.3;