Finding the Third Proportional to 113,900 and 242,464

Step by Step Solution

1. Step 1: Write the proportion equation
   113,900 : 242,464 = 242,464 : x
2. Step 2: Convert to fraction form
   113,900/242,464 = 242,464/x
3. Step 3: Cross multiply
   113,900x = 242,464 × 242,464
4. Step 4: Simplify right side
   113,900x = 58,788,791,296
5. Step 5: Solve for x
   x = 58,788,791,296/113,900
6. Step 6: Final answer
   x = 516,143.91