Finding the Third Proportional to 123,245 and 265,171

Step by Step Solution

1. Step 1: Write the proportion equation
   123,245 : 265,171 = 265,171 : x
2. Step 2: Convert to fraction form
   123,245/265,171 = 265,171/x
3. Step 3: Cross multiply
   123,245x = 265,171 × 265,171
4. Step 4: Simplify right side
   123,245x = 70,315,659,241
5. Step 5: Solve for x
   x = 70,315,659,241/123,245
6. Step 6: Final answer
   x = 570,535.59