Finding the Third Proportional to 111,702 and 243,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,702 : 243,100.50 = 243,100.50 : x
2. Step 2: Convert to fraction form
   111,702/243,100.50 = 243,100.50/x
3. Step 3: Cross multiply
   111,702x = 243,100.50 × 243,100.50
4. Step 4: Simplify right side
   111,702x = 59,097,853,100.25
5. Step 5: Solve for x
   x = 59,097,853,100.25/111,702
6. Step 6: Final answer
   x = 529,067.10