Finding the Third Proportional to 488,745 and 682,788

Step by Step Solution

1. Step 1: Write the proportion equation
   488,745 : 682,788 = 682,788 : x
2. Step 2: Convert to fraction form
   488,745/682,788 = 682,788/x
3. Step 3: Cross multiply
   488,745x = 682,788 × 682,788
4. Step 4: Simplify right side
   488,745x = 466,199,452,944
5. Step 5: Solve for x
   x = 466,199,452,944/488,745
6. Step 6: Final answer
   x = 953,870.53