Finding the Third Proportional to 31,624 and 70,249

Step by Step Solution

1. Step 1: Write the proportion equation
   31,624 : 70,249 = 70,249 : x
2. Step 2: Convert to fraction form
   31,624/70,249 = 70,249/x
3. Step 3: Cross multiply
   31,624x = 70,249 × 70,249
4. Step 4: Simplify right side
   31,624x = 4,934,922,001
5. Step 5: Solve for x
   x = 4,934,922,001/31,624
6. Step 6: Final answer
   x = 156,049.90