Finding the Third Proportional to 115,754 and 245,719

Step by Step Solution

1. Step 1: Write the proportion equation
   115,754 : 245,719 = 245,719 : x
2. Step 2: Convert to fraction form
   115,754/245,719 = 245,719/x
3. Step 3: Cross multiply
   115,754x = 245,719 × 245,719
4. Step 4: Simplify right side
   115,754x = 60,377,826,961
5. Step 5: Solve for x
   x = 60,377,826,961/115,754
6. Step 6: Final answer
   x = 521,604.67