1. **State the problem:** Solve for $x$ in the equation $$x = 200000 + 70000 + \frac{2139}{100} \times x.$$\n\n2. **Rewrite the equation:** Combine the constants on the right side:\n$$x = 270000 + \frac{2139}{100} x.$$\n\n3. **Isolate $x$ terms:** Subtract $\frac{2139}{100} x$ from both sides to get all $x$ terms on the left:\n$$x - \frac{2139}{100} x = 270000.$$\n\n4. **Simplify the left side:** Factor out $x$:\n$$x \left(1 - \frac{2139}{100}\right) = 270000.$$\n\n5. **Calculate the coefficient:** Convert to a common denominator and subtract:\n$$1 = \frac{100}{100}, \quad 1 - \frac{2139}{100} = \frac{100 - 2139}{100} = \frac{-2039}{100}.$$\nSo,\n$$x \times \frac{-2039}{100} = 270000.$$\n\n6. **Solve for $x$:** Divide both sides by $\frac{-2039}{100}$:\n$$x = \frac{270000}{\frac{-2039}{100}} = 270000 \times \frac{100}{-2039}.$$\n\n7. **Simplify the multiplication:**\n$$x = \frac{27000000}{-2039} = -13239.43 \text{ (approx)}.$$\n\n**Final answer:** $$x \approx -13239.43.$$