Finding the Third Proportional to 30,774 and 62,988

Step by Step Solution

1. Step 1: Write the proportion equation
   30,774 : 62,988 = 62,988 : x
2. Step 2: Convert to fraction form
   30,774/62,988 = 62,988/x
3. Step 3: Cross multiply
   30,774x = 62,988 × 62,988
4. Step 4: Simplify right side
   30,774x = 3,967,488,144
5. Step 5: Solve for x
   x = 3,967,488,144/30,774
6. Step 6: Final answer
   x = 128,923.38