Finding the Third Proportional to 1,213,742 and 2,648,668

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213,742 : 2,648,668 = 2,648,668 : x
2. Step 2: Convert to fraction form
   1,213,742/2,648,668 = 2,648,668/x
3. Step 3: Cross multiply
   1,213,742x = 2,648,668 × 2,648,668
4. Step 4: Simplify right side
   1,213,742x = 7,015,442,174,224
5. Step 5: Solve for x
   x = 7,015,442,174,224/1,213,742
6. Step 6: Final answer
   x = 5,780,011.05