Finding the Third Proportional to 113,379 and 248,262

Step by Step Solution

1. Step 1: Write the proportion equation
   113,379 : 248,262 = 248,262 : x
2. Step 2: Convert to fraction form
   113,379/248,262 = 248,262/x
3. Step 3: Cross multiply
   113,379x = 248,262 × 248,262
4. Step 4: Simplify right side
   113,379x = 61,634,020,644
5. Step 5: Solve for x
   x = 61,634,020,644/113,379
6. Step 6: Final answer
   x = 543,610.55