#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000000
#define Inf64 1000000000000000001



int main(){
	
	double T,S,D;
	cin>>T>>S>>D;
	cout<<fixed<<setprecision(10)<<D/S<<endl;
	return 0;
}