Finding the Third Proportional to 215,828 and 469,462

Step by Step Solution

1. Step 1: Write the proportion equation
   215,828 : 469,462 = 469,462 : x
2. Step 2: Convert to fraction form
   215,828/469,462 = 469,462/x
3. Step 3: Cross multiply
   215,828x = 469,462 × 469,462
4. Step 4: Simplify right side
   215,828x = 220,394,569,444
5. Step 5: Solve for x
   x = 220,394,569,444/215,828
6. Step 6: Final answer
   x = 1,021,158.37