Finding the Third Proportional to 113,978 and 248,023

Step by Step Solution

1. Step 1: Write the proportion equation
   113,978 : 248,023 = 248,023 : x
2. Step 2: Convert to fraction form
   113,978/248,023 = 248,023/x
3. Step 3: Cross multiply
   113,978x = 248,023 × 248,023
4. Step 4: Simplify right side
   113,978x = 61,515,408,529
5. Step 5: Solve for x
   x = 61,515,408,529/113,978
6. Step 6: Final answer
   x = 539,713.00