4.5 times 2 minus 3 equals six meters, 6 times 4.5 equals 27, 0.3 times 0.3 equals 0.09, 27 divided by 0.09 equals 300 blocks, 300 times 2.8 equals 840, 27 times 5 equals 135, 135 plus 840 equals 975, and the floor tile of the first specification is 975 yuan. 0.45 times 0.45 equals 0.2025, 27 divided by 0.2020≈ 134, 134 multiplied by 56 equals 750.4 yuan, 27 times 5 equals 135 yuan, 750.4 plus 135 equals 885.4 yuan. Answer: The second size floor tile is 885.4.