Finding the Third Proportional to 680,500 and 1,485,518

Step by Step Solution

1. Step 1: Write the proportion equation
   680,500 : 1,485,518 = 1,485,518 : x
2. Step 2: Convert to fraction form
   680,500/1,485,518 = 1,485,518/x
3. Step 3: Cross multiply
   680,500x = 1,485,518 × 1,485,518
4. Step 4: Simplify right side
   680,500x = 2,206,763,728,324
5. Step 5: Solve for x
   x = 2,206,763,728,324/680,500
6. Step 6: Final answer
   x = 3,242,856.32