Finding the Third Proportional to 42,258 and 91,068

Step by Step Solution

1. Step 1: Write the proportion equation
   42,258 : 91,068 = 91,068 : x
2. Step 2: Convert to fraction form
   42,258/91,068 = 91,068/x
3. Step 3: Cross multiply
   42,258x = 91,068 × 91,068
4. Step 4: Simplify right side
   42,258x = 8,293,380,624
5. Step 5: Solve for x
   x = 8,293,380,624/42,258
6. Step 6: Final answer
   x = 196,255.87