Finding the Third Proportional to 251,540 and 380,552

Step by Step Solution

1. Step 1: Write the proportion equation
   251,540 : 380,552 = 380,552 : x
2. Step 2: Convert to fraction form
   251,540/380,552 = 380,552/x
3. Step 3: Cross multiply
   251,540x = 380,552 × 380,552
4. Step 4: Simplify right side
   251,540x = 144,819,824,704
5. Step 5: Solve for x
   x = 144,819,824,704/251,540
6. Step 6: Final answer
   x = 575,732.78