Finding the Third Proportional to 2,690,856 and 4,155,262

Step by Step Solution

1. Step 1: Write the proportion equation
   2,690,856 : 4,155,262 = 4,155,262 : x
2. Step 2: Convert to fraction form
   2,690,856/4,155,262 = 4,155,262/x
3. Step 3: Cross multiply
   2,690,856x = 4,155,262 × 4,155,262
4. Step 4: Simplify right side
   2,690,856x = 17,266,202,288,644
5. Step 5: Solve for x
   x = 17,266,202,288,644/2,690,856
6. Step 6: Final answer
   x = 6,416,620.69