Finding the Third Proportional to 1,211,914 and 2,636,642

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,914 : 2,636,642 = 2,636,642 : x
2. Step 2: Convert to fraction form
   1,211,914/2,636,642 = 2,636,642/x
3. Step 3: Cross multiply
   1,211,914x = 2,636,642 × 2,636,642
4. Step 4: Simplify right side
   1,211,914x = 6,951,881,036,164
5. Step 5: Solve for x
   x = 6,951,881,036,164/1,211,914
6. Step 6: Final answer
   x = 5,736,282.47