Finding the Third Proportional to 113,171 and 245,811

Step by Step Solution

1. Step 1: Write the proportion equation
   113,171 : 245,811 = 245,811 : x
2. Step 2: Convert to fraction form
   113,171/245,811 = 245,811/x
3. Step 3: Cross multiply
   113,171x = 245,811 × 245,811
4. Step 4: Simplify right side
   113,171x = 60,423,047,721
5. Step 5: Solve for x
   x = 60,423,047,721/113,171
6. Step 6: Final answer
   x = 533,909.29