Finding the Third Proportional to 123,904 and 263,792

Step by Step Solution

1. Step 1: Write the proportion equation
   123,904 : 263,792 = 263,792 : x
2. Step 2: Convert to fraction form
   123,904/263,792 = 263,792/x
3. Step 3: Cross multiply
   123,904x = 263,792 × 263,792
4. Step 4: Simplify right side
   123,904x = 69,586,219,264
5. Step 5: Solve for x
   x = 69,586,219,264/123,904
6. Step 6: Final answer
   x = 561,613.99