Finding the Third Proportional to 42,208 and 90,067

Step by Step Solution

1. Step 1: Write the proportion equation
   42,208 : 90,067 = 90,067 : x
2. Step 2: Convert to fraction form
   42,208/90,067 = 90,067/x
3. Step 3: Cross multiply
   42,208x = 90,067 × 90,067
4. Step 4: Simplify right side
   42,208x = 8,112,064,489
5. Step 5: Solve for x
   x = 8,112,064,489/42,208
6. Step 6: Final answer
   x = 192,192.58