Finding the Third Proportional to 111,404 and 231,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,404 : 231,987.50 = 231,987.50 : x
2. Step 2: Convert to fraction form
   111,404/231,987.50 = 231,987.50/x
3. Step 3: Cross multiply
   111,404x = 231,987.50 × 231,987.50
4. Step 4: Simplify right side
   111,404x = 53,818,200,156.25
5. Step 5: Solve for x
   x = 53,818,200,156.25/111,404
6. Step 6: Final answer
   x = 483,090.38