Finding the Third Proportional to 31,908 and 67,338

Step by Step Solution

1. Step 1: Write the proportion equation
   31,908 : 67,338 = 67,338 : x
2. Step 2: Convert to fraction form
   31,908/67,338 = 67,338/x
3. Step 3: Cross multiply
   31,908x = 67,338 × 67,338
4. Step 4: Simplify right side
   31,908x = 4,534,406,244
5. Step 5: Solve for x
   x = 4,534,406,244/31,908
6. Step 6: Final answer
   x = 142,108.76