Finding the Third Proportional to 111,903 and 243,481

Step by Step Solution

1. Step 1: Write the proportion equation
   111,903 : 243,481 = 243,481 : x
2. Step 2: Convert to fraction form
   111,903/243,481 = 243,481/x
3. Step 3: Cross multiply
   111,903x = 243,481 × 243,481
4. Step 4: Simplify right side
   111,903x = 59,282,997,361
5. Step 5: Solve for x
   x = 59,282,997,361/111,903
6. Step 6: Final answer
   x = 529,771.30