Finding the Third Proportional to 1,619,678 and 2,514,405

Step by Step Solution

1. Step 1: Write the proportion equation
   1,619,678 : 2,514,405 = 2,514,405 : x
2. Step 2: Convert to fraction form
   1,619,678/2,514,405 = 2,514,405/x
3. Step 3: Cross multiply
   1,619,678x = 2,514,405 × 2,514,405
4. Step 4: Simplify right side
   1,619,678x = 6,322,232,504,025
5. Step 5: Solve for x
   x = 6,322,232,504,025/1,619,678
6. Step 6: Final answer
   x = 3,903,388.52