Finding the Third Proportional to 215,955 and 504,499

Step by Step Solution

1. Step 1: Write the proportion equation
   215,955 : 504,499 = 504,499 : x
2. Step 2: Convert to fraction form
   215,955/504,499 = 504,499/x
3. Step 3: Cross multiply
   215,955x = 504,499 × 504,499
4. Step 4: Simplify right side
   215,955x = 254,519,241,001
5. Step 5: Solve for x
   x = 254,519,241,001/215,955
6. Step 6: Final answer
   x = 1,178,575.36