Finding the Third Proportional to 1,689,668 and 3,519,142

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,668 : 3,519,142 = 3,519,142 : x
2. Step 2: Convert to fraction form
   1,689,668/3,519,142 = 3,519,142/x
3. Step 3: Cross multiply
   1,689,668x = 3,519,142 × 3,519,142
4. Step 4: Simplify right side
   1,689,668x = 12,384,360,416,164
5. Step 5: Solve for x
   x = 12,384,360,416,164/1,689,668
6. Step 6: Final answer
   x = 7,329,463.79