Finding the Third Proportional to 1,780,668 and 4,199,271

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,668 : 4,199,271 = 4,199,271 : x
2. Step 2: Convert to fraction form
   1,780,668/4,199,271 = 4,199,271/x
3. Step 3: Cross multiply
   1,780,668x = 4,199,271 × 4,199,271
4. Step 4: Simplify right side
   1,780,668x = 17,633,876,931,441
5. Step 5: Solve for x
   x = 17,633,876,931,441/1,780,668
6. Step 6: Final answer
   x = 9,902,956.04