Finding the Third Proportional to 30,138 and 63,030

Step by Step Solution

1. Step 1: Write the proportion equation
   30,138 : 63,030 = 63,030 : x
2. Step 2: Convert to fraction form
   30,138/63,030 = 63,030/x
3. Step 3: Cross multiply
   30,138x = 63,030 × 63,030
4. Step 4: Simplify right side
   30,138x = 3,972,780,900
5. Step 5: Solve for x
   x = 3,972,780,900/30,138
6. Step 6: Final answer
   x = 131,819.66