Based on footnotes from the New Living Translation Bible, 10,000 talents is roughly 375 tons of silver. Silver today is about $20.69/troy ounce. With about 29,166 troy ounces in a ton, ten thousand talents would be around $226,291,702.50.
A denarii is considered a days wage in the resources I've come across be them footnotes or Bible dictionaries. No hard and fast silver or gold amounts. So you could see it as a 100 days worth of work.
The force of this parable is this is a debt that the debtor would never hope to pay in his lifetime (in their money in that day or in ours today), and the forgiveness was given so freely that his lack of forgiveness was a stark contrast to his master's. This is powerful parable of the need for forgiveness and the consequences of not mimicking the master's forgiveness in our dealings.