Finding the Third Proportional to 231,856 and 488,615

Step by Step Solution

1. Step 1: Write the proportion equation
   231,856 : 488,615 = 488,615 : x
2. Step 2: Convert to fraction form
   231,856/488,615 = 488,615/x
3. Step 3: Cross multiply
   231,856x = 488,615 × 488,615
4. Step 4: Simplify right side
   231,856x = 238,744,618,225
5. Step 5: Solve for x
   x = 238,744,618,225/231,856
6. Step 6: Final answer
   x = 1,029,710.76