Finding the Third Proportional to 111,336 and 262,554.75

Step by Step Solution

1. Step 1: Write the proportion equation
   111,336 : 262,554.75 = 262,554.75 : x
2. Step 2: Convert to fraction form
   111,336/262,554.75 = 262,554.75/x
3. Step 3: Cross multiply
   111,336x = 262,554.75 × 262,554.75
4. Step 4: Simplify right side
   111,336x = 68,934,996,747.56
5. Step 5: Solve for x
   x = 68,934,996,747.56/111,336
6. Step 6: Final answer
   x = 619,161.79