Two engineering teams jointly install a section of natural gas pipeline. Team A has installed 258 meters, and team B has installed 1.3 times less than team A by 30 meters. The two teams installed exactly half of the total length. How long is this natural gas pipeline in meters? ?
两个工程队共同安装一段天然气管道，甲队已经安装了258米，乙队安装的比甲队的1.3倍少30米，两队装的正好是全长的一半，这段天然气管道长多少米？
<gadget id="calculator">258 * 1.3</gadget>
<output>335.4</output>

<gadget id="calculator">335.4 - 30</gadget>
<output>305.4</output>

<gadget id="calculator">258 + 305.4</gadget>
<output>563.4</output>

<gadget id="calculator">563.4 * 2</gadget>
<output>1_126.8</output>

<result>1_126.8</result>