Finding the Third Proportional to 668,820 and 1,036,765

Step by Step Solution

1. Step 1: Write the proportion equation
   668,820 : 1,036,765 = 1,036,765 : x
2. Step 2: Convert to fraction form
   668,820/1,036,765 = 1,036,765/x
3. Step 3: Cross multiply
   668,820x = 1,036,765 × 1,036,765
4. Step 4: Simplify right side
   668,820x = 1,074,881,665,225
5. Step 5: Solve for x
   x = 1,074,881,665,225/668,820
6. Step 6: Final answer
   x = 1,607,131.46