The question asks us to rearrange the digits of the number 6954381 in descending order from left to right and then identify the digit that is third from the right end of this new arrangement.

Digits Arrangement Process

First, let's identify the individual digits present in the given number, which is 6954381.

• The digits are: 6, 9, 5, 4, 3, 8, 1.

Sorting Digits in Descending Order

Next, we need to arrange these digits in descending order (from largest to smallest). Let's sort the digits:

• The digits sorted in descending order are: $9, 8, 6, 5, 4, 3, 1$.

The sequence formed is $9865431$.

Identifying the Third Digit from the Right

Now, we need to find the digit that is third from the right end of the sorted sequence ($9, 8, 6, 5, 4, 3, 1$).

Let's count the positions from the right:

• 1st digit from the right: 1
• 2nd digit from the right: 3
• 3rd digit from the right: 4

Therefore, the digit that is third from the right after arranging the digits in descending order is 4.