Finding the Third Proportional to 248,260 and 531,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,260 : 531,511.50 = 531,511.50 : x
2. Step 2: Convert to fraction form
   248,260/531,511.50 = 531,511.50/x
3. Step 3: Cross multiply
   248,260x = 531,511.50 × 531,511.50
4. Step 4: Simplify right side
   248,260x = 282,504,474,632.25
5. Step 5: Solve for x
   x = 282,504,474,632.25/248,260
6. Step 6: Final answer
   x = 1,137,937.95