Finding the Third Proportional to 245,394 and 519,081.75

Step by Step Solution

1. Step 1: Write the proportion equation
   245,394 : 519,081.75 = 519,081.75 : x
2. Step 2: Convert to fraction form
   245,394/519,081.75 = 519,081.75/x
3. Step 3: Cross multiply
   245,394x = 519,081.75 × 519,081.75
4. Step 4: Simplify right side
   245,394x = 269,445,863,183.06
5. Step 5: Solve for x
   x = 269,445,863,183.06/245,394
6. Step 6: Final answer
   x = 1,098,013.25