Finding the Third Proportional to 4,031,676 and 8,705,200

Step by Step Solution

1. Step 1: Write the proportion equation
   4,031,676 : 8,705,200 = 8,705,200 : x
2. Step 2: Convert to fraction form
   4,031,676/8,705,200 = 8,705,200/x
3. Step 3: Cross multiply
   4,031,676x = 8,705,200 × 8,705,200
4. Step 4: Simplify right side
   4,031,676x = 75,780,507,040,000
5. Step 5: Solve for x
   x = 75,780,507,040,000/4,031,676
6. Step 6: Final answer
   x = 18,796,279.03