Problem $3-3($Algo$)$

Given the following history, use a three$-$quarter moving average to forecast the demand for the third quarter of this year. Note that the $1$st quarter is January, February, and March; $2$nd quarter April, May, June; $3$rd quarter July, August, September; and $4$ th quarter October, November, December.

Note: Round final answer to a whole number.

$\backslash$table$[[,,,,,,,,],[,$JANUARY,FEBRUARY,MARCH,APRIL,MAY,JUNE,JULY,AUGUS$],[$Last year,$110,130,140,180,190,210,155,],[$This year,$135,145,190,205,235,270,,]]$

Forecast for the third quarter