Finding the Third Proportional to 215,982 and 469,660

Step by Step Solution

1. Step 1: Write the proportion equation
   215,982 : 469,660 = 469,660 : x
2. Step 2: Convert to fraction form
   215,982/469,660 = 469,660/x
3. Step 3: Cross multiply
   215,982x = 469,660 × 469,660
4. Step 4: Simplify right side
   215,982x = 220,580,515,600
5. Step 5: Solve for x
   x = 220,580,515,600/215,982
6. Step 6: Final answer
   x = 1,021,291.20