Finding the Third Proportional to 111,456 and 243,283.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,456 : 243,283.50 = 243,283.50 : x
2. Step 2: Convert to fraction form
   111,456/243,283.50 = 243,283.50/x
3. Step 3: Cross multiply
   111,456x = 243,283.50 × 243,283.50
4. Step 4: Simplify right side
   111,456x = 59,186,861,372.25
5. Step 5: Solve for x
   x = 59,186,861,372.25/111,456
6. Step 6: Final answer
   x = 531,033.42