Finding the Third Proportional to 139,360.50 and 205,760.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,360.50 : 205,760.25 = 205,760.25 : x
2. Step 2: Convert to fraction form
   139,360.50/205,760.25 = 205,760.25/x
3. Step 3: Cross multiply
   139,360.50x = 205,760.25 × 205,760.25
4. Step 4: Simplify right side
   139,360.50x = 42,337,280,480.06
5. Step 5: Solve for x
   x = 42,337,280,480.06/139,360.50
6. Step 6: Final answer
   x = 303,796.85