Finding the Third Proportional to 105,320 and 230,320

Step by Step Solution

1. Step 1: Write the proportion equation
   105,320 : 230,320 = 230,320 : x
2. Step 2: Convert to fraction form
   105,320/230,320 = 230,320/x
3. Step 3: Cross multiply
   105,320x = 230,320 × 230,320
4. Step 4: Simplify right side
   105,320x = 53,047,302,400
5. Step 5: Solve for x
   x = 53,047,302,400/105,320
6. Step 6: Final answer
   x = 503,677.39