Finding the Third Proportional to 31,251 and 69,414

Step by Step Solution

1. Step 1: Write the proportion equation
   31,251 : 69,414 = 69,414 : x
2. Step 2: Convert to fraction form
   31,251/69,414 = 69,414/x
3. Step 3: Cross multiply
   31,251x = 69,414 × 69,414
4. Step 4: Simplify right side
   31,251x = 4,818,303,396
5. Step 5: Solve for x
   x = 4,818,303,396/31,251
6. Step 6: Final answer
   x = 154,180.77