Finding the Third Proportional to 14,778 and 30,988

Step by Step Solution

1. Step 1: Write the proportion equation
   14,778 : 30,988 = 30,988 : x
2. Step 2: Convert to fraction form
   14,778/30,988 = 30,988/x
3. Step 3: Cross multiply
   14,778x = 30,988 × 30,988
4. Step 4: Simplify right side
   14,778x = 960,256,144
5. Step 5: Solve for x
   x = 960,256,144/14,778
6. Step 6: Final answer
   x = 64,978.76