Finding the Third Proportional to 113,515.50 and 243,330

Step by Step Solution

1. Step 1: Write the proportion equation
   113,515.50 : 243,330 = 243,330 : x
2. Step 2: Convert to fraction form
   113,515.50/243,330 = 243,330/x
3. Step 3: Cross multiply
   113,515.50x = 243,330 × 243,330
4. Step 4: Simplify right side
   113,515.50x = 59,209,488,900
5. Step 5: Solve for x
   x = 59,209,488,900/113,515.50
6. Step 6: Final answer
   x = 521,598.27