| 237928 | = | ( | 245577 | + | x | ) | ÷ | 2 |
| Right side of the equation = | 245577 | × | 1 2 | + | x | × | 1 2 |
| = | 245577 2 | + | x | × | 1 2 |
| 237928 | = | 245577 2 | + | 1 2 | x |
| - | 1 2 | x | = | 245577 2 | − | 237928 |
| - | 1 2 | x | = | - | 230279 2 |
230279 2 | = | 1 2 | x |
1 2 | x | = | 230279 2 |
| x | = | 230279 2 | ÷ | 1 2 |
| = | 230279 2 | × | 2 |
| = | 230279 | × | 1 |
| x | = | 230279 |