Finding the Third Proportional to 248,632.50 and 542,808

Step by Step Solution

1. Step 1: Write the proportion equation
   248,632.50 : 542,808 = 542,808 : x
2. Step 2: Convert to fraction form
   248,632.50/542,808 = 542,808/x
3. Step 3: Cross multiply
   248,632.50x = 542,808 × 542,808
4. Step 4: Simplify right side
   248,632.50x = 294,640,524,864
5. Step 5: Solve for x
   x = 294,640,524,864/248,632.50
6. Step 6: Final answer
   x = 1,185,044.29