Finding the Third Proportional to 113,776 and 248,287

Step by Step Solution

1. Step 1: Write the proportion equation
   113,776 : 248,287 = 248,287 : x
2. Step 2: Convert to fraction form
   113,776/248,287 = 248,287/x
3. Step 3: Cross multiply
   113,776x = 248,287 × 248,287
4. Step 4: Simplify right side
   113,776x = 61,646,434,369
5. Step 5: Solve for x
   x = 61,646,434,369/113,776
6. Step 6: Final answer
   x = 541,822.83