Finding the Third Proportional to 111,895.50 and 243,466.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,895.50 : 243,466.50 = 243,466.50 : x
2. Step 2: Convert to fraction form
   111,895.50/243,466.50 = 243,466.50/x
3. Step 3: Cross multiply
   111,895.50x = 243,466.50 × 243,466.50
4. Step 4: Simplify right side
   111,895.50x = 59,275,936,622.25
5. Step 5: Solve for x
   x = 59,275,936,622.25/111,895.50
6. Step 6: Final answer
   x = 529,743.70