
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 is 98.72 million. Additionally, the population of urban and rural residents are 56.33 million and 42.39 million, respectively. Express 42.39 million in scientific notation.

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