Finding the Third Proportional to 1,213,818 and 2,659,836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213,818 : 2,659,836 = 2,659,836 : x
2. Step 2: Convert to fraction form
   1,213,818/2,659,836 = 2,659,836/x
3. Step 3: Cross multiply
   1,213,818x = 2,659,836 × 2,659,836
4. Step 4: Simplify right side
   1,213,818x = 7,074,727,546,896
5. Step 5: Solve for x
   x = 7,074,727,546,896/1,213,818
6. Step 6: Final answer
   x = 5,828,491.21