Finding the Third Proportional to 111,144 and 240,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,144 : 240,055.50 = 240,055.50 : x
2. Step 2: Convert to fraction form
   111,144/240,055.50 = 240,055.50/x
3. Step 3: Cross multiply
   111,144x = 240,055.50 × 240,055.50
4. Step 4: Simplify right side
   111,144x = 57,626,643,080.25
5. Step 5: Solve for x
   x = 57,626,643,080.25/111,144
6. Step 6: Final answer
   x = 518,486.32