Finding the Third Proportional to 31,831.69 and 70,019.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,831.69 : 70,019.06 = 70,019.06 : x
2. Step 2: Convert to fraction form
   31,831.69/70,019.06 = 70,019.06/x
3. Step 3: Cross multiply
   31,831.69x = 70,019.06 × 70,019.06
4. Step 4: Simplify right side
   31,831.69x = 4,902,669,113.38
5. Step 5: Solve for x
   x = 4,902,669,113.38/31,831.69
6. Step 6: Final answer
   x = 154,018.51