Short Answer 
The process involves identifying a positive correlation between two numbers, calculating their differences, and establishing a constant difference of 123. This rule can then be applied to find the second number corresponding to any given first number, such as determining that the second number for 555 is 432.
Step 1: Identify the Pattern
To understand the relationship between the two numbers, we first need to observe the *transformation* between the first number and the second number. It appears that as the first number increases, the second number also shows an *increase*, signifying a positive correlation.
Step 2: Calculate the Differences
Next, we will compute the *difference* between the two numbers in the provided transformations. By doing this, we look for consistency, which will help us form a rule for the transformation:
- 249 – 126 = 123
- 313 – 190 = 123
- 636 – 513 = 123
This shows that the difference between the two numbers remains constant at 123.
Step 3: Apply the Pattern
Now that we have determined that the difference is always 123, we can apply this rule to find the corresponding second number for any first number. For example, if the first number is 555:
- 555 – 123 = 432
Thus, the second number associated with 555 is 432.