Finding the Third Proportional to 30,612 and 67,236

Step by Step Solution

1. Step 1: Write the proportion equation
   30,612 : 67,236 = 67,236 : x
2. Step 2: Convert to fraction form
   30,612/67,236 = 67,236/x
3. Step 3: Cross multiply
   30,612x = 67,236 × 67,236
4. Step 4: Simplify right side
   30,612x = 4,520,679,696
5. Step 5: Solve for x
   x = 4,520,679,696/30,612
6. Step 6: Final answer
   x = 147,676.72