Finding the Third Proportional to 19,988 and 35,980

Step by Step Solution

1. Step 1: Write the proportion equation
   19,988 : 35,980 = 35,980 : x
2. Step 2: Convert to fraction form
   19,988/35,980 = 35,980/x
3. Step 3: Cross multiply
   19,988x = 35,980 × 35,980
4. Step 4: Simplify right side
   19,988x = 1,294,560,400
5. Step 5: Solve for x
   x = 1,294,560,400/19,988
6. Step 6: Final answer
   x = 64,766.88