Finding the Third Proportional to 3,670,040 and 8,634,836

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,040 : 8,634,836 = 8,634,836 : x
2. Step 2: Convert to fraction form
   3,670,040/8,634,836 = 8,634,836/x
3. Step 3: Cross multiply
   3,670,040x = 8,634,836 × 8,634,836
4. Step 4: Simplify right side
   3,670,040x = 74,560,392,746,896
5. Step 5: Solve for x
   x = 74,560,392,746,896/3,670,040
6. Step 6: Final answer
   x = 20,315,961.88