Finding the Third Proportional to 111,748.78 and 242,061.75

Step by Step Solution

1. Step 1: Write the proportion equation
   111,748.78 : 242,061.75 = 242,061.75 : x
2. Step 2: Convert to fraction form
   111,748.78/242,061.75 = 242,061.75/x
3. Step 3: Cross multiply
   111,748.78x = 242,061.75 × 242,061.75
4. Step 4: Simplify right side
   111,748.78x = 58,593,890,813.06
5. Step 5: Solve for x
   x = 58,593,890,813.06/111,748.78
6. Step 6: Final answer
   x = 524,335.84