Finding the Third Proportional to 89,534.25 and 139,750.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,534.25 : 139,750.50 = 139,750.50 : x
2. Step 2: Convert to fraction form
   89,534.25/139,750.50 = 139,750.50/x
3. Step 3: Cross multiply
   89,534.25x = 139,750.50 × 139,750.50
4. Step 4: Simplify right side
   89,534.25x = 19,530,202,250.25
5. Step 5: Solve for x
   x = 19,530,202,250.25/89,534.25
6. Step 6: Final answer
   x = 218,131.08