Finding the Third Proportional to 1,115,856 and 1,621,944

Step by Step Solution

1. Step 1: Write the proportion equation
   1,115,856 : 1,621,944 = 1,621,944 : x
2. Step 2: Convert to fraction form
   1,115,856/1,621,944 = 1,621,944/x
3. Step 3: Cross multiply
   1,115,856x = 1,621,944 × 1,621,944
4. Step 4: Simplify right side
   1,115,856x = 2,630,702,339,136
5. Step 5: Solve for x
   x = 2,630,702,339,136/1,115,856
6. Step 6: Final answer
   x = 2,357,564.36