Finding the Third Proportional to 231,606 and 488,116

Step by Step Solution

1. Step 1: Write the proportion equation
   231,606 : 488,116 = 488,116 : x
2. Step 2: Convert to fraction form
   231,606/488,116 = 488,116/x
3. Step 3: Cross multiply
   231,606x = 488,116 × 488,116
4. Step 4: Simplify right side
   231,606x = 238,257,229,456
5. Step 5: Solve for x
   x = 238,257,229,456/231,606
6. Step 6: Final answer
   x = 1,028,717.86