Finding the Third Proportional to 111,410.25 and 240,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,410.25 : 240,574.50 = 240,574.50 : x
2. Step 2: Convert to fraction form
   111,410.25/240,574.50 = 240,574.50/x
3. Step 3: Cross multiply
   111,410.25x = 240,574.50 × 240,574.50
4. Step 4: Simplify right side
   111,410.25x = 57,876,090,050.25
5. Step 5: Solve for x
   x = 57,876,090,050.25/111,410.25
6. Step 6: Final answer
   x = 519,486.22