Finding the Third Proportional to 42,448 and 90,512

Step by Step Solution

1. Step 1: Write the proportion equation
   42,448 : 90,512 = 90,512 : x
2. Step 2: Convert to fraction form
   42,448/90,512 = 90,512/x
3. Step 3: Cross multiply
   42,448x = 90,512 × 90,512
4. Step 4: Simplify right side
   42,448x = 8,192,422,144
5. Step 5: Solve for x
   x = 8,192,422,144/42,448
6. Step 6: Final answer
   x = 192,999.01