| 500000 | ÷ | ( | x | − | 50 | ) | × | ( | 2 | x | − | 100 | ) | = | 19 3125 |
| 方程两边同时乘以: | ( | x | − | 50 | ) |
| 500000 | ( | 2 | x | − | 100 | ) | = | 19 3125 | ( | x | − | 50 | ) |
| 500000 | × | 2 | x | − | 500000 | × | 100 | = | 19 3125 | ( | x | − | 50 | ) |
| 500000 | × | 2 | x | − | 500000 | × | 100 | = | 19 3125 | x | − | 19 3125 | × | 50 |
| 1000000 | x | − | 50000000 | = | 19 3125 | x | − | 38 125 |
| 1000000 | x | − | 19 3125 | x | = | - | 38 125 | + | 50000000 |
3124999981 3125 | x | = | - | 38 125 | + | 50000000 |
3124999981 3125 | x | = | 6249999962 125 |
| x | = | 6249999962 125 | ÷ | 3124999981 3125 |
| = | 6249999962 125 | × | 3125 3124999981 |
| = | 25306 | × | 25 12653 |
| x | = | 632650 12653 |
| x | = | 632650 12653 |