Rosser--Schoenfeld theta lower bound: high range, final sub-shard 504

For every integer $n$ with $99477217\le n\le99999999$, $(n+1)-2\sqrt{n+1}\le\theta(n)$, and the certificate's accumulated bound $A$ satisfies $A/2^{40}\le\theta(100000000)$; the hypothesis is the quantitative carry $B/2^{40}\le\theta(99477217)$ handed on by the previous shard. This is a final sub-shard of the finite endpoint certificate of the high sub-range $10^6\le t\le10^8$ in Rosser and Schoenfeld's Theorem 19.