Finding the Third Proportional to 817,180 and 1,268,271

Step by Step Solution

1. Step 1: Write the proportion equation
   817,180 : 1,268,271 = 1,268,271 : x
2. Step 2: Convert to fraction form
   817,180/1,268,271 = 1,268,271/x
3. Step 3: Cross multiply
   817,180x = 1,268,271 × 1,268,271
4. Step 4: Simplify right side
   817,180x = 1,608,511,329,441
5. Step 5: Solve for x
   x = 1,608,511,329,441/817,180
6. Step 6: Final answer
   x = 1,968,368.45