Finding the Third Proportional to 42,708 and 65,988

Step by Step Solution

1. Step 1: Write the proportion equation
   42,708 : 65,988 = 65,988 : x
2. Step 2: Convert to fraction form
   42,708/65,988 = 65,988/x
3. Step 3: Cross multiply
   42,708x = 65,988 × 65,988
4. Step 4: Simplify right side
   42,708x = 4,354,416,144
5. Step 5: Solve for x
   x = 4,354,416,144/42,708
6. Step 6: Final answer
   x = 101,957.86