Finding the Third Proportional to 3,670,031 and 8,634,870

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,031 : 8,634,870 = 8,634,870 : x
2. Step 2: Convert to fraction form
   3,670,031/8,634,870 = 8,634,870/x
3. Step 3: Cross multiply
   3,670,031x = 8,634,870 × 8,634,870
4. Step 4: Simplify right side
   3,670,031x = 74,560,979,916,900
5. Step 5: Solve for x
   x = 74,560,979,916,900/3,670,031
6. Step 6: Final answer
   x = 20,316,171.69