Finding the Third Proportional to 138,067.50 and 284,943

Step by Step Solution

1. Step 1: Write the proportion equation
   138,067.50 : 284,943 = 284,943 : x
2. Step 2: Convert to fraction form
   138,067.50/284,943 = 284,943/x
3. Step 3: Cross multiply
   138,067.50x = 284,943 × 284,943
4. Step 4: Simplify right side
   138,067.50x = 81,192,513,249
5. Step 5: Solve for x
   x = 81,192,513,249/138,067.50
6. Step 6: Final answer
   x = 588,063.91