Sentence:  Then , if the middle number is activated to its greatest potential in terms of this square , through <WSD>multiplying</WSD> it by the highest number , 9 ( which is the square of the base number ) , the result is 45 ; and the latter is the total sum of all the numbers in the square , by which all the other numbers are overshadowed and in which they may be said to be absorbed . 
Meaning of the word marked with <WSD> tags:  combine by multiplication