Finding the Third Proportional to 231,608.25 and 488,119.50

Step by Step Solution

1. Step 1: Write the proportion equation
   231,608.25 : 488,119.50 = 488,119.50 : x
2. Step 2: Convert to fraction form
   231,608.25/488,119.50 = 488,119.50/x
3. Step 3: Cross multiply
   231,608.25x = 488,119.50 × 488,119.50
4. Step 4: Simplify right side
   231,608.25x = 238,260,646,280.25
5. Step 5: Solve for x
   x = 238,260,646,280.25/231,608.25
6. Step 6: Final answer
   x = 1,028,722.62