Finding the Third Proportional to 111,171 and 243,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,171 : 243,424.50 = 243,424.50 : x
2. Step 2: Convert to fraction form
   111,171/243,424.50 = 243,424.50/x
3. Step 3: Cross multiply
   111,171x = 243,424.50 × 243,424.50
4. Step 4: Simplify right side
   111,171x = 59,255,487,200.25
5. Step 5: Solve for x
   x = 59,255,487,200.25/111,171
6. Step 6: Final answer
   x = 533,012.09