Finding the Third Proportional to 642,006 and 1,366,956

Step by Step Solution

1. Step 1: Write the proportion equation
   642,006 : 1,366,956 = 1,366,956 : x
2. Step 2: Convert to fraction form
   642,006/1,366,956 = 1,366,956/x
3. Step 3: Cross multiply
   642,006x = 1,366,956 × 1,366,956
4. Step 4: Simplify right side
   642,006x = 1,868,568,705,936
5. Step 5: Solve for x
   x = 1,868,568,705,936/642,006
6. Step 6: Final answer
   x = 2,910,515.95