Finding the Third Proportional to 115,395 and 242,452.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,395 : 242,452.50 = 242,452.50 : x
2. Step 2: Convert to fraction form
   115,395/242,452.50 = 242,452.50/x
3. Step 3: Cross multiply
   115,395x = 242,452.50 × 242,452.50
4. Step 4: Simplify right side
   115,395x = 58,783,214,756.25
5. Step 5: Solve for x
   x = 58,783,214,756.25/115,395
6. Step 6: Final answer
   x = 509,408.68