Finding the Third Proportional to 249,869.50 and 548,354

Step by Step Solution

1. Step 1: Write the proportion equation
   249,869.50 : 548,354 = 548,354 : x
2. Step 2: Convert to fraction form
   249,869.50/548,354 = 548,354/x
3. Step 3: Cross multiply
   249,869.50x = 548,354 × 548,354
4. Step 4: Simplify right side
   249,869.50x = 300,692,109,316
5. Step 5: Solve for x
   x = 300,692,109,316/249,869.50
6. Step 6: Final answer
   x = 1,203,396.61