To draw the line chart, we will represent the number of participants from Belarus in summer Olympics. Since each cell represents 10 people, we will divide the number of participants by 10 to determine the number of cells for each point on the line chart.
The provided table lists "Pro" and "Pyeongchang" Olympiads. Typically, "Pro" (Sochi 2014) and "Pyeongchang" (2018) are Winter Olympics. Without specific data for Summer Olympics in the provided crops, we cannot directly draw the line chart for Summer Olympics based solely on the given table.
However, if we assume the question implies to use data that might be available elsewhere (as suggested by point 'в' in question 5 about finding data online) or if there's a misunderstanding and the question intends to refer to the available data, we proceed with the available data, acknowledging the discrepancy.
Let's assume, for the sake of demonstrating the method, that 'Pro' and 'Pyeongchang' were intended to represent hypothetical Summer Olympics data points, or that there's missing context. We will use the provided numbers and the scaling rule (1 cell = 10 people).
To create a line chart:
Note: Since the provided table lists Winter Olympics, external data would be required to accurately fulfill this request for Summer Olympics. The explanation above demonstrates the process using the given scaling rule.