Finding the Third Proportional to 139,073.25 and 188,919

Step by Step Solution

1. Step 1: Write the proportion equation
   139,073.25 : 188,919 = 188,919 : x
2. Step 2: Convert to fraction form
   139,073.25/188,919 = 188,919/x
3. Step 3: Cross multiply
   139,073.25x = 188,919 × 188,919
4. Step 4: Simplify right side
   139,073.25x = 35,690,388,561
5. Step 5: Solve for x
   x = 35,690,388,561/139,073.25
6. Step 6: Final answer
   x = 256,630.15