Finding the Third Proportional to 250,308 and 518,358.38

Step by Step Solution

1. Step 1: Write the proportion equation
   250,308 : 518,358.38 = 518,358.38 : x
2. Step 2: Convert to fraction form
   250,308/518,358.38 = 518,358.38/x
3. Step 3: Cross multiply
   250,308x = 518,358.38 × 518,358.38
4. Step 4: Simplify right side
   250,308x = 268,695,404,932.64
5. Step 5: Solve for x
   x = 268,695,404,932.64/250,308
6. Step 6: Final answer
   x = 1,073,459.12