Finding the Third Proportional to 668,768 and 1,036,680

Step by Step Solution

1. Step 1: Write the proportion equation
   668,768 : 1,036,680 = 1,036,680 : x
2. Step 2: Convert to fraction form
   668,768/1,036,680 = 1,036,680/x
3. Step 3: Cross multiply
   668,768x = 1,036,680 × 1,036,680
4. Step 4: Simplify right side
   668,768x = 1,074,705,422,400
5. Step 5: Solve for x
   x = 1,074,705,422,400/668,768
6. Step 6: Final answer
   x = 1,606,992.89