Finding the Third Proportional to 42,118 and 90,986

Step by Step Solution

1. Step 1: Write the proportion equation
   42,118 : 90,986 = 90,986 : x
2. Step 2: Convert to fraction form
   42,118/90,986 = 90,986/x
3. Step 3: Cross multiply
   42,118x = 90,986 × 90,986
4. Step 4: Simplify right side
   42,118x = 8,278,452,196
5. Step 5: Solve for x
   x = 8,278,452,196/42,118
6. Step 6: Final answer
   x = 196,553.78