Finding the Third Proportional to 89,591.06 and 139,831.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,591.06 : 139,831.31 = 139,831.31 : x
2. Step 2: Convert to fraction form
   89,591.06/139,831.31 = 139,831.31/x
3. Step 3: Cross multiply
   89,591.06x = 139,831.31 × 139,831.31
4. Step 4: Simplify right side
   89,591.06x = 19,552,795,955.47
5. Step 5: Solve for x
   x = 19,552,795,955.47/89,591.06
6. Step 6: Final answer
   x = 218,244.94