Finding the Third Proportional to 30,898 and 67,372

Step by Step Solution

1. Step 1: Write the proportion equation
   30,898 : 67,372 = 67,372 : x
2. Step 2: Convert to fraction form
   30,898/67,372 = 67,372/x
3. Step 3: Cross multiply
   30,898x = 67,372 × 67,372
4. Step 4: Simplify right side
   30,898x = 4,538,986,384
5. Step 5: Solve for x
   x = 4,538,986,384/30,898
6. Step 6: Final answer
   x = 146,902.27