Finding the Third Proportional to 3,920,607 and 8,441,928

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,607 : 8,441,928 = 8,441,928 : x
2. Step 2: Convert to fraction form
   3,920,607/8,441,928 = 8,441,928/x
3. Step 3: Cross multiply
   3,920,607x = 8,441,928 × 8,441,928
4. Step 4: Simplify right side
   3,920,607x = 71,266,148,357,184
5. Step 5: Solve for x
   x = 71,266,148,357,184/3,920,607
6. Step 6: Final answer
   x = 18,177,325.18