Finding the Third Proportional to 111,537 and 245,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,537 : 245,308.50 = 245,308.50 : x
2. Step 2: Convert to fraction form
   111,537/245,308.50 = 245,308.50/x
3. Step 3: Cross multiply
   111,537x = 245,308.50 × 245,308.50
4. Step 4: Simplify right side
   111,537x = 60,176,260,172.25
5. Step 5: Solve for x
   x = 60,176,260,172.25/111,537
6. Step 6: Final answer
   x = 539,518.37