Finding the Third Proportional to 249,696 and 550,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,696 : 550,291.50 = 550,291.50 : x
2. Step 2: Convert to fraction form
   249,696/550,291.50 = 550,291.50/x
3. Step 3: Cross multiply
   249,696x = 550,291.50 × 550,291.50
4. Step 4: Simplify right side
   249,696x = 302,820,734,972.25
5. Step 5: Solve for x
   x = 302,820,734,972.25/249,696
6. Step 6: Final answer
   x = 1,212,757.65