Finding the Third Proportional to 1,668,840 and 3,589,176

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668,840 : 3,589,176 = 3,589,176 : x
2. Step 2: Convert to fraction form
   1,668,840/3,589,176 = 3,589,176/x
3. Step 3: Cross multiply
   1,668,840x = 3,589,176 × 3,589,176
4. Step 4: Simplify right side
   1,668,840x = 12,882,184,358,976
5. Step 5: Solve for x
   x = 12,882,184,358,976/1,668,840
6. Step 6: Final answer
   x = 7,719,244.72