Finding the Third Proportional to 42,079 and 90,718

Step by Step Solution

1. Step 1: Write the proportion equation
   42,079 : 90,718 = 90,718 : x
2. Step 2: Convert to fraction form
   42,079/90,718 = 90,718/x
3. Step 3: Cross multiply
   42,079x = 90,718 × 90,718
4. Step 4: Simplify right side
   42,079x = 8,229,755,524
5. Step 5: Solve for x
   x = 8,229,755,524/42,079
6. Step 6: Final answer
   x = 195,578.69