Finding the Third Proportional to 110,909 and 245,506

Step by Step Solution

1. Step 1: Write the proportion equation
   110,909 : 245,506 = 245,506 : x
2. Step 2: Convert to fraction form
   110,909/245,506 = 245,506/x
3. Step 3: Cross multiply
   110,909x = 245,506 × 245,506
4. Step 4: Simplify right side
   110,909x = 60,273,196,036
5. Step 5: Solve for x
   x = 60,273,196,036/110,909
6. Step 6: Final answer
   x = 543,447.29