Finding the Third Proportional to 31,832 and 68,900

Step by Step Solution

1. Step 1: Write the proportion equation
   31,832 : 68,900 = 68,900 : x
2. Step 2: Convert to fraction form
   31,832/68,900 = 68,900/x
3. Step 3: Cross multiply
   31,832x = 68,900 × 68,900
4. Step 4: Simplify right side
   31,832x = 4,747,210,000
5. Step 5: Solve for x
   x = 4,747,210,000/31,832
6. Step 6: Final answer
   x = 149,133.26