By property of proportion, Product of Extremes = Product of Means. 7 * 45 = 35 * x => x = (7 * 45) / 35 = 315 / 35 = 9.
समानुपात के गुण के अनुसार, बाह्य पदों का गुणनफल = मध्य पदों का गुणनफल। 7 * 45 = 35 * x => x = (7 * 45) / 35 = 315 / 35 = 9।