Finding the Third Proportional to 31,960 and 70,280

Step by Step Solution

1. Step 1: Write the proportion equation
   31,960 : 70,280 = 70,280 : x
2. Step 2: Convert to fraction form
   31,960/70,280 = 70,280/x
3. Step 3: Cross multiply
   31,960x = 70,280 × 70,280
4. Step 4: Simplify right side
   31,960x = 4,939,278,400
5. Step 5: Solve for x
   x = 4,939,278,400/31,960
6. Step 6: Final answer
   x = 154,545.63