Finding the Third Proportional to 89,535.38 and 139,750.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,535.38 : 139,750.31 = 139,750.31 : x
2. Step 2: Convert to fraction form
   89,535.38/139,750.31 = 139,750.31/x
3. Step 3: Cross multiply
   89,535.38x = 139,750.31 × 139,750.31
4. Step 4: Simplify right side
   89,535.38x = 19,530,149,843.85
5. Step 5: Solve for x
   x = 19,530,149,843.85/89,535.38
6. Step 6: Final answer
   x = 218,127.75