Finding the Third Proportional to 139,366.50 and 205,768.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,366.50 : 205,768.50 = 205,768.50 : x
2. Step 2: Convert to fraction form
   139,366.50/205,768.50 = 205,768.50/x
3. Step 3: Cross multiply
   139,366.50x = 205,768.50 × 205,768.50
4. Step 4: Simplify right side
   139,366.50x = 42,340,675,592.25
5. Step 5: Solve for x
   x = 42,340,675,592.25/139,366.50
6. Step 6: Final answer
   x = 303,808.13