Finding the Third Proportional to 1,668,408 and 3,642,630

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668,408 : 3,642,630 = 3,642,630 : x
2. Step 2: Convert to fraction form
   1,668,408/3,642,630 = 3,642,630/x
3. Step 3: Cross multiply
   1,668,408x = 3,642,630 × 3,642,630
4. Step 4: Simplify right side
   1,668,408x = 13,268,753,316,900
5. Step 5: Solve for x
   x = 13,268,753,316,900/1,668,408
6. Step 6: Final answer
   x = 7,952,942.76