Finding the Third Proportional to 248,819 and 375,290

Step by Step Solution

1. Step 1: Write the proportion equation
   248,819 : 375,290 = 375,290 : x
2. Step 2: Convert to fraction form
   248,819/375,290 = 375,290/x
3. Step 3: Cross multiply
   248,819x = 375,290 × 375,290
4. Step 4: Simplify right side
   248,819x = 140,842,584,100
5. Step 5: Solve for x
   x = 140,842,584,100/248,819
6. Step 6: Final answer
   x = 566,044.33