Sorting CSV data by third column (Revenues) in descending order

**Problem:** I have a CSV file with five columns (1st column is a string and the other four are integers). I want to filter based on the third column, Revenues, the largest on the top and smallest on the bottom. I want to write the result to a new CSV file. It seems that I would need to use something like

awk -F '","'  'BEGIN {OFS=","} { if (Revenues($5) > ?? print }' Valuation.csv > Ranking.csv

**Data:**

Company,Nbr employees, Revenues  , Revenues per employee , Valuation 
Facebook,"35,587","55,800,000,000","1,567,988","491,000,000,000"
Uber,"16,000","11,300,000,000","706,250","120,000,000,000"
Snapchat,"3,069","1,180,000,000","384,490","7,200,000,000"
Airbnb,"3,100","2,600,000,000","838,710","38,000,000,000"
LinkedIn,"13,000","26,200,000,000","2,015,385","26,200,000,000"
Coursora,280,"140,000,000","500,000","815,000,000"
Google,"98,771","39,120,000,000","396,068","720,000,000,000"
Stripe,"1,500","450,000,000","300,000","22,500,000,000"
Epic Games,700,"3,000,000,000","4,285,714","15,000,000,000"
Grab,"3,000","2,750,000,000","916,667","10,000,000,000"
Pinterest,800,"1,000,000,000","1,250,000","12,000,000,000"