
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The total resident population of the province was 98.72 million, with 56.33 million urban residents and 42.39 million rural residents. Express the number 42.39 million in scientific notation.

Present the answer in LaTex format: \boxed{Your answer}
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