Finding the Third Proportional to 30,907 and 67,481

Step by Step Solution

1. Step 1: Write the proportion equation
   30,907 : 67,481 = 67,481 : x
2. Step 2: Convert to fraction form
   30,907/67,481 = 67,481/x
3. Step 3: Cross multiply
   30,907x = 67,481 × 67,481
4. Step 4: Simplify right side
   30,907x = 4,553,685,361
5. Step 5: Solve for x
   x = 4,553,685,361/30,907
6. Step 6: Final answer
   x = 147,335.08