Finding the Third Proportional to 111,492 and 240,480

Step by Step Solution

1. Step 1: Write the proportion equation
   111,492 : 240,480 = 240,480 : x
2. Step 2: Convert to fraction form
   111,492/240,480 = 240,480/x
3. Step 3: Cross multiply
   111,492x = 240,480 × 240,480
4. Step 4: Simplify right side
   111,492x = 57,830,630,400
5. Step 5: Solve for x
   x = 57,830,630,400/111,492
6. Step 6: Final answer
   x = 518,697.58