Finding the Third Proportional to 42,919 and 89,761

Step by Step Solution

1. Step 1: Write the proportion equation
   42,919 : 89,761 = 89,761 : x
2. Step 2: Convert to fraction form
   42,919/89,761 = 89,761/x
3. Step 3: Cross multiply
   42,919x = 89,761 × 89,761
4. Step 4: Simplify right side
   42,919x = 8,057,037,121
5. Step 5: Solve for x
   x = 8,057,037,121/42,919
6. Step 6: Final answer
   x = 187,726.58