Finding the Third Proportional to 231,820 and 488,546

Step by Step Solution

1. Step 1: Write the proportion equation
   231,820 : 488,546 = 488,546 : x
2. Step 2: Convert to fraction form
   231,820/488,546 = 488,546/x
3. Step 3: Cross multiply
   231,820x = 488,546 × 488,546
4. Step 4: Simplify right side
   231,820x = 238,677,194,116
5. Step 5: Solve for x
   x = 238,677,194,116/231,820
6. Step 6: Final answer
   x = 1,029,579.82