Benchmarking is like playing a game of "I Spy" but with very specific things. Instead of looking for a red car, you are trying to find a spot on a map that has a special metal post called a benchmark.
This benchmark helps people know exactly where they are on the map. Think of it like a giant ruler stuck in the ground that tells you how far you are from other places.
Sometimes, people need to know where they are for really important things like building roads, houses or even airports. So, they use benchmarking to help them find the exact spot they need.
Geolocating is just another way to say "finding your location on a map". It's like telling someone where you are when they ask, "where are you?". Benchmarking helps with geolocating because it gives a very specific point on the map where you can say, "I am right here, by the benchmark post!"
So, benchmarking helps people find important spots on the map and geolocating helps people know where they are on that same map.