Finding the Third Proportional to 105,287 and 230,258

Step by Step Solution

1. Step 1: Write the proportion equation
   105,287 : 230,258 = 230,258 : x
2. Step 2: Convert to fraction form
   105,287/230,258 = 230,258/x
3. Step 3: Cross multiply
   105,287x = 230,258 × 230,258
4. Step 4: Simplify right side
   105,287x = 53,018,746,564
5. Step 5: Solve for x
   x = 53,018,746,564/105,287
6. Step 6: Final answer
   x = 503,564.04