0,05•0,0005•5000000-1/3

Let's break down the calculation step by step:

1. Multiply the numbers: \( 0.05 \times 0.0005 \times 5000000 \)

   First, calculate \( 0.05 \times 0.0005 \): \[ 0.05 \times 0.0005 = 0.000025 \]

   Next, multiply this result by \( 5000000 \): \[ 0.000025 \times 5000000 = 125 \]

2. Now subtract \( \frac{1}{3} \) from this result: First, calculate \( \frac{1}{3} \): \[ \frac{1}{3} \approx 0.3333 \]

3. Therefore, subtract \( 0.3333 \) from \( 125 \): \[ 125 - 0.3333 \approx 124.6667 \]

So the final result is approximately: \[ \boxed{124.6667} \]