Finding the Third Proportional to 668,772 and 1,442,034

Step by Step Solution

1. Step 1: Write the proportion equation
   668,772 : 1,442,034 = 1,442,034 : x
2. Step 2: Convert to fraction form
   668,772/1,442,034 = 1,442,034/x
3. Step 3: Cross multiply
   668,772x = 1,442,034 × 1,442,034
4. Step 4: Simplify right side
   668,772x = 2,079,462,057,156
5. Step 5: Solve for x
   x = 2,079,462,057,156/668,772
6. Step 6: Final answer
   x = 3,109,373.68