Finding the Third Proportional to 42,258 and 89,904

Step by Step Solution

1. Step 1: Write the proportion equation
   42,258 : 89,904 = 89,904 : x
2. Step 2: Convert to fraction form
   42,258/89,904 = 89,904/x
3. Step 3: Cross multiply
   42,258x = 89,904 × 89,904
4. Step 4: Simplify right side
   42,258x = 8,082,729,216
5. Step 5: Solve for x
   x = 8,082,729,216/42,258
6. Step 6: Final answer
   x = 191,270.98