Finding the Third Proportional to 113,400 and 248,616

Step by Step Solution

1. Step 1: Write the proportion equation
   113,400 : 248,616 = 248,616 : x
2. Step 2: Convert to fraction form
   113,400/248,616 = 248,616/x
3. Step 3: Cross multiply
   113,400x = 248,616 × 248,616
4. Step 4: Simplify right side
   113,400x = 61,809,915,456
5. Step 5: Solve for x
   x = 61,809,915,456/113,400
6. Step 6: Final answer
   x = 545,060.98