Finding the Third Proportional to 20,110 and 42,891

Step by Step Solution

1. Step 1: Write the proportion equation
   20,110 : 42,891 = 42,891 : x
2. Step 2: Convert to fraction form
   20,110/42,891 = 42,891/x
3. Step 3: Cross multiply
   20,110x = 42,891 × 42,891
4. Step 4: Simplify right side
   20,110x = 1,839,637,881
5. Step 5: Solve for x
   x = 1,839,637,881/20,110
6. Step 6: Final answer
   x = 91,478.76