Finding the Third Proportional to 111,273 and 247,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,273 : 247,423.50 = 247,423.50 : x
2. Step 2: Convert to fraction form
   111,273/247,423.50 = 247,423.50/x
3. Step 3: Cross multiply
   111,273x = 247,423.50 × 247,423.50
4. Step 4: Simplify right side
   111,273x = 61,218,388,352.25
5. Step 5: Solve for x
   x = 61,218,388,352.25/111,273
6. Step 6: Final answer
   x = 550,163.91