Finding the Third Proportional to 113,530 and 243,371

Step by Step Solution

1. Step 1: Write the proportion equation
   113,530 : 243,371 = 243,371 : x
2. Step 2: Convert to fraction form
   113,530/243,371 = 243,371/x
3. Step 3: Cross multiply
   113,530x = 243,371 × 243,371
4. Step 4: Simplify right side
   113,530x = 59,229,443,641
5. Step 5: Solve for x
   x = 59,229,443,641/113,530
6. Step 6: Final answer
   x = 521,707.42