Finding the Third Proportional to 31,187 and 67,366

Step by Step Solution

1. Step 1: Write the proportion equation
   31,187 : 67,366 = 67,366 : x
2. Step 2: Convert to fraction form
   31,187/67,366 = 67,366/x
3. Step 3: Cross multiply
   31,187x = 67,366 × 67,366
4. Step 4: Simplify right side
   31,187x = 4,538,177,956
5. Step 5: Solve for x
   x = 4,538,177,956/31,187
6. Step 6: Final answer
   x = 145,515.05