C182 PLT LANDS AT NON TWR ARPT AND DURING TAXI HAS NEAR COLLISION WITH ACFT LNDG ON INTERSECTING RWY.

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MY ATTN WAS FOCUSED ON TFC FOR THE ACTIVE; RWY 4; AT THIS UNCTLED ARPT. THERE WAS QUITE A BIT OF BOTH TFC AND TALK ON 122.8 AND COVERING MANY ARPTS. I DID HEAR '34' MENTIONED BUT DIDN'T CONNECT IT WITH THIS ARPT. AFTER LNDG AND PULLING OFF ONTO THE TXWY; CLEANING UP THE AIRPLANE; AND TAXIING TOWARD THE TERMINAL I SAW THE RWY '34/16' SIGN. REALIZING IT WAS THE CROSS RWY I PERFORMED A QUICK L AND R TURN FOR TFC. SEEING NONE; I STARTED ACROSS. IMMEDIATELY I HEARD THE WARNING; 'CESSNA ON THE RWY;' THE ENG'S NOISE; AND SAW THE SHADOW OF THE PLANE XING RIGHT IN FRONT OF ME. I DON'T SEE HOW I COULD NOT HAVE SEEN HIM WHEN I LOOKED L BEFORE ENTERING RWY 34/16. I LOOKED AT AND ABOVE THE THRESHOLD OF RWY 34; SAW NOTHING. THE ONLY PLACE THAT HE HAD TO BE WAS BLOCKED BY MY L WING AND MAYBE HE WAS TO HIS R OF THE CTRLINE. HE DID A GAR AND I TOOK THE BLAME. I APOLOGIZED TO THE PLT AS I TAXIED ON. THE EXPERIENCE WAS SCARY; VERY CLOSE TO DISASTER. AWHILE LATER I MET THE PLT; AND HIS STUDENT; OF THE OTHER PLANE AND THANKED HIM AND APOLOGIZED AGAIN.