Finding the Third Proportional to 31,939.50 and 70,359

Step by Step Solution

1. Step 1: Write the proportion equation
   31,939.50 : 70,359 = 70,359 : x
2. Step 2: Convert to fraction form
   31,939.50/70,359 = 70,359/x
3. Step 3: Cross multiply
   31,939.50x = 70,359 × 70,359
4. Step 4: Simplify right side
   31,939.50x = 4,950,388,881
5. Step 5: Solve for x
   x = 4,950,388,881/31,939.50
6. Step 6: Final answer
   x = 154,992.69