Finding the Third Proportional to 248,436 and 536,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,436 : 536,215.50 = 536,215.50 : x
2. Step 2: Convert to fraction form
   248,436/536,215.50 = 536,215.50/x
3. Step 3: Cross multiply
   248,436x = 536,215.50 × 536,215.50
4. Step 4: Simplify right side
   248,436x = 287,527,062,440.25
5. Step 5: Solve for x
   x = 287,527,062,440.25/248,436
6. Step 6: Final answer
   x = 1,157,348.62