Please solve the programming task below using a self-contained code snippet in a markdown code block.

Given an integer array nums and an integer k, return the kth largest element in the array.
Note that it is the kth largest element in the sorted order, not the kth distinct element.
Can you solve it without sorting?
 
Please complete the following python code precisely:
```python
class Solution:
    def findKthLargest(self, nums: List[int], k: int) -> int:
```