Finding the Third Proportional to 1,115,864 and 1,621,956

Step by Step Solution

1. Step 1: Write the proportion equation
   1,115,864 : 1,621,956 = 1,621,956 : x
2. Step 2: Convert to fraction form
   1,115,864/1,621,956 = 1,621,956/x
3. Step 3: Cross multiply
   1,115,864x = 1,621,956 × 1,621,956
4. Step 4: Simplify right side
   1,115,864x = 2,630,741,265,936
5. Step 5: Solve for x
   x = 2,630,741,265,936/1,115,864
6. Step 6: Final answer
   x = 2,357,582.35