The most likely distance between the Milky Way galaxy and another galaxy from the options provided is 10.8 billion light years.
Here's a brief breakdown of why the other options are less appropriate:
- 22,926 miles: This distance is much too small for intergalactic distances.
- 30 million kilometers: While this distance is larger, it is still comparatively small on a cosmic scale (the nearest galaxy, the Andromeda Galaxy, is about 2.5 million light-years away).
- 19.2 astronomical units: An astronomical unit (AU) is the average distance from the Earth to the Sun, which is about 93 million miles; 19.2 AU would still be within our own solar system scale.
Thus, 10.8 billion light years is the most appropriate choice.