Finding the Third Proportional to 1,678,299 and 2,581,155

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,299 : 2,581,155 = 2,581,155 : x
2. Step 2: Convert to fraction form
   1,678,299/2,581,155 = 2,581,155/x
3. Step 3: Cross multiply
   1,678,299x = 2,581,155 × 2,581,155
4. Step 4: Simplify right side
   1,678,299x = 6,662,361,134,025
5. Step 5: Solve for x
   x = 6,662,361,134,025/1,678,299
6. Step 6: Final answer
   x = 3,969,710.48