Since 1 Euro is equal to 19.998976272993872 South African Rand, we could say that n Euros are equal to 19.998976272993872 times n South African Rand. In other words, we could use the following formula:
South African Rand = Euros x 19.998976272993872
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 19.998976272993872
That is, 2.0 Euros are equal to 39.997952545987744 South African Rand.