Finding the Third Proportional to 111,262.50 and 240,345

Step by Step Solution

1. Step 1: Write the proportion equation
   111,262.50 : 240,345 = 240,345 : x
2. Step 2: Convert to fraction form
   111,262.50/240,345 = 240,345/x
3. Step 3: Cross multiply
   111,262.50x = 240,345 × 240,345
4. Step 4: Simplify right side
   111,262.50x = 57,765,719,025
5. Step 5: Solve for x
   x = 57,765,719,025/111,262.50
6. Step 6: Final answer
   x = 519,184.08