Since 1 Euro is equal to 19.58111428417479 South African Rand, we could say that n Euros are equal to 19.58111428417479 times n South African Rand. In other words, we could use the following formula:
South African Rand = Euros x 19.58111428417479
For example, let's say that we want to convert 2.0 Euros to South African Rand. Then, we just replace Euros in the abovementioned formula with 2.0:
South African Rand = 2.0 x 19.58111428417479
That is, 2.0 Euros are equal to 39.16222856834958 South African Rand.