document.write( "Question 972260: if 17 is the first number and 3 is the second number then what is the third number??? \n" ); document.write( "
Algebra.Com's Answer #594626 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
If it's an arithmetic sequence then,
\n" ); document.write( "\"d=a%5B2%5D-a%5B1%5D=3-17=-14\"
\n" ); document.write( "So,
\n" ); document.write( "\"a%5B3%5D=3-14\"
\n" ); document.write( "\"a%5B3%5D=-11\"
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\n" ); document.write( "If it's a geometric series then,
\n" ); document.write( "\"r=a%5B2%5D%2Fa%5B1%5D=3%2F17\"
\n" ); document.write( "So,
\n" ); document.write( "\"a%5B3%5D%2Fa%5B2%5D=3%2F17\"
\n" ); document.write( "\"a%5B3%5D=3%283%2F17%29\"
\n" ); document.write( "\"a%5B3%5D=9%2F17\"
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