AS PRACTISED BY THE ARABS. 101 



The number in $ 1,385. The product in*' . . 1,385 X 5 = 6,925 



6,925 800,425 



793,5 5 



The sum in r' 800,425. The product in t/ 4,002,125 



4,002,125' 247,342,125 



243,340 5 



The sum in <p' 247,342,125. The product in tf 1,236,710,625 



1,236,710,625 43,212,860,625 



41,976,15 5 



. , . . . 



The sum in ty 43,212,860,625. The product in <J . . 216,064,303,125 



216,064,303,125 4,077,870,103,125 



3,861,805,8 , 5 



Thesumin\' .. 4,077,870,103,125. The product in (-J . .20,389,350,515,625 

 which last product is greater than 18,535,911,753,593. 



<-/. Write the found figure 4, which answers the conditions above 

 4, the units of the third period 758,593, and exterior to and immediately- 

 above the Pulpit Diagram. This is the third found figure of the Root. 



ey. Call this last product 16,134,619,913,216, which answers the 

 conditions the third Subtrahend, and write it opposite to and immediately 

 under 18,535,911,758,593, the second Resolvend. 



