Finding the Third Proportional to 31,173 and 67,632

Step by Step Solution

1. Step 1: Write the proportion equation
   31,173 : 67,632 = 67,632 : x
2. Step 2: Convert to fraction form
   31,173/67,632 = 67,632/x
3. Step 3: Cross multiply
   31,173x = 67,632 × 67,632
4. Step 4: Simplify right side
   31,173x = 4,574,087,424
5. Step 5: Solve for x
   x = 4,574,087,424/31,173
6. Step 6: Final answer
   x = 146,732.35