Finding the Third Proportional to 42,808 and 91,988

Step by Step Solution

1. Step 1: Write the proportion equation
   42,808 : 91,988 = 91,988 : x
2. Step 2: Convert to fraction form
   42,808/91,988 = 91,988/x
3. Step 3: Cross multiply
   42,808x = 91,988 × 91,988
4. Step 4: Simplify right side
   42,808x = 8,461,792,144
5. Step 5: Solve for x
   x = 8,461,792,144/42,808
6. Step 6: Final answer
   x = 197,668.48