Finding the Third Proportional to 111,285,542 and 237,886,238

Step by Step Solution

1. Step 1: Write the proportion equation
   111,285,542 : 237,886,238 = 237,886,238 : x
2. Step 2: Convert to fraction form
   111,285,542/237,886,238 = 237,886,238/x
3. Step 3: Cross multiply
   111,285,542x = 237,886,238 × 237,886,238
4. Step 4: Simplify right side
   111,285,542x = 56,589,862,229,792,640
5. Step 5: Solve for x
   x = 56,589,862,229,792,640/111,285,542
6. Step 6: Final answer
   x = 508,510,460.68