Finding the Third Proportional to 42,508 and 90,800

Step by Step Solution

1. Step 1: Write the proportion equation
   42,508 : 90,800 = 90,800 : x
2. Step 2: Convert to fraction form
   42,508/90,800 = 90,800/x
3. Step 3: Cross multiply
   42,508x = 90,800 × 90,800
4. Step 4: Simplify right side
   42,508x = 8,244,640,000
5. Step 5: Solve for x
   x = 8,244,640,000/42,508
6. Step 6: Final answer
   x = 193,955.02