Finding the Third Proportional to 249,240 and 543,592.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,240 : 543,592.50 = 543,592.50 : x
2. Step 2: Convert to fraction form
   249,240/543,592.50 = 543,592.50/x
3. Step 3: Cross multiply
   249,240x = 543,592.50 × 543,592.50
4. Step 4: Simplify right side
   249,240x = 295,492,806,056.25
5. Step 5: Solve for x
   x = 295,492,806,056.25/249,240
6. Step 6: Final answer
   x = 1,185,575.37