Finding the Third Proportional to 31,612 and 67,722

Step by Step Solution

1. Step 1: Write the proportion equation
   31,612 : 67,722 = 67,722 : x
2. Step 2: Convert to fraction form
   31,612/67,722 = 67,722/x
3. Step 3: Cross multiply
   31,612x = 67,722 × 67,722
4. Step 4: Simplify right side
   31,612x = 4,586,269,284
5. Step 5: Solve for x
   x = 4,586,269,284/31,612
6. Step 6: Final answer
   x = 145,080.01