Finding the Third Proportional to 1,668,320 and 3,572,800

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668,320 : 3,572,800 = 3,572,800 : x
2. Step 2: Convert to fraction form
   1,668,320/3,572,800 = 3,572,800/x
3. Step 3: Cross multiply
   1,668,320x = 3,572,800 × 3,572,800
4. Step 4: Simplify right side
   1,668,320x = 12,764,899,840,000
5. Step 5: Solve for x
   x = 12,764,899,840,000/1,668,320
6. Step 6: Final answer
   x = 7,651,349.77