Finding the Third Proportional to 111,444.75 and 243,200.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111,444.75 : 243,200.25 = 243,200.25 : x
2. Step 2: Convert to fraction form
   111,444.75/243,200.25 = 243,200.25/x
3. Step 3: Cross multiply
   111,444.75x = 243,200.25 × 243,200.25
4. Step 4: Simplify right side
   111,444.75x = 59,146,361,600.06
5. Step 5: Solve for x
   x = 59,146,361,600.06/111,444.75
6. Step 6: Final answer
   x = 530,723.62