Finding the Third Proportional to 108,999 and 243,508.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,999 : 243,508.50 = 243,508.50 : x
2. Step 2: Convert to fraction form
   108,999/243,508.50 = 243,508.50/x
3. Step 3: Cross multiply
   108,999x = 243,508.50 × 243,508.50
4. Step 4: Simplify right side
   108,999x = 59,296,389,572.25
5. Step 5: Solve for x
   x = 59,296,389,572.25/108,999
6. Step 6: Final answer
   x = 544,008.56