Finding the Third Proportional to 249,261 and 543,634.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,261 : 543,634.50 = 543,634.50 : x
2. Step 2: Convert to fraction form
   249,261/543,634.50 = 543,634.50/x
3. Step 3: Cross multiply
   249,261x = 543,634.50 × 543,634.50
4. Step 4: Simplify right side
   249,261x = 295,538,469,590.25
5. Step 5: Solve for x
   x = 295,538,469,590.25/249,261
6. Step 6: Final answer
   x = 1,185,658.69