Finding the Third Proportional to 231,860 and 488,626

Step by Step Solution

1. Step 1: Write the proportion equation
   231,860 : 488,626 = 488,626 : x
2. Step 2: Convert to fraction form
   231,860/488,626 = 488,626/x
3. Step 3: Cross multiply
   231,860x = 488,626 × 488,626
4. Step 4: Simplify right side
   231,860x = 238,755,367,876
5. Step 5: Solve for x
   x = 238,755,367,876/231,860
6. Step 6: Final answer
   x = 1,029,739.36