Finding the Third Proportional to 111,510 and 240,516

Step by Step Solution

1. Step 1: Write the proportion equation
   111,510 : 240,516 = 240,516 : x
2. Step 2: Convert to fraction form
   111,510/240,516 = 240,516/x
3. Step 3: Cross multiply
   111,510x = 240,516 × 240,516
4. Step 4: Simplify right side
   111,510x = 57,847,946,256
5. Step 5: Solve for x
   x = 57,847,946,256/111,510
6. Step 6: Final answer
   x = 518,769.14