Finding the Third Proportional to 668,780 and 1,036,705

Step by Step Solution

1. Step 1: Write the proportion equation
   668,780 : 1,036,705 = 1,036,705 : x
2. Step 2: Convert to fraction form
   668,780/1,036,705 = 1,036,705/x
3. Step 3: Cross multiply
   668,780x = 1,036,705 × 1,036,705
4. Step 4: Simplify right side
   668,780x = 1,074,757,257,025
5. Step 5: Solve for x
   x = 1,074,757,257,025/668,780
6. Step 6: Final answer
   x = 1,607,041.56