Solution - Simplification or other simple results

Step  1  :

 1.1     243 = 35

(243)³ = (3⁵)³ = 3¹⁵

Equation at the end of step  1  :

Step  2  :

            315
 Simplify   ———
             2 

Final result :

  315                                 
  ——— = 7.17445 • 106 
   2