What are second term in ratio and proportion?

In a ratio, the second term is the number that follows the first term, representing the other quantity being compared. For example, in the ratio 3:5, the second term is 5. In proportion, which equates two ratiOS, the second term is part of the relationship that shows how two pairs of quantities are equivalent, such as in the proportion 3:5 = 6:10, where 5 is the second term of the first ratio.