Finding the Third Proportional to 123,282 and 252,404

Step by Step Solution

1. Step 1: Write the proportion equation
   123,282 : 252,404 = 252,404 : x
2. Step 2: Convert to fraction form
   123,282/252,404 = 252,404/x
3. Step 3: Cross multiply
   123,282x = 252,404 × 252,404
4. Step 4: Simplify right side
   123,282x = 63,707,779,216
5. Step 5: Solve for x
   x = 63,707,779,216/123,282
6. Step 6: Final answer
   x = 516,764.65