Finding the Third Proportional to 109,179 and 231,480

Step by Step Solution

1. Step 1: Write the proportion equation
   109,179 : 231,480 = 231,480 : x
2. Step 2: Convert to fraction form
   109,179/231,480 = 231,480/x
3. Step 3: Cross multiply
   109,179x = 231,480 × 231,480
4. Step 4: Simplify right side
   109,179x = 53,582,990,400
5. Step 5: Solve for x
   x = 53,582,990,400/109,179
6. Step 6: Final answer
   x = 490,781.11