Finding the Third Proportional to 248,400 and 536,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,400 : 536,143.50 = 536,143.50 : x
2. Step 2: Convert to fraction form
   248,400/536,143.50 = 536,143.50/x
3. Step 3: Cross multiply
   248,400x = 536,143.50 × 536,143.50
4. Step 4: Simplify right side
   248,400x = 287,449,852,592.25
5. Step 5: Solve for x
   x = 287,449,852,592.25/248,400
6. Step 6: Final answer
   x = 1,157,205.53