Finding the Third Proportional to 4,021,692 and 8,765,928

Step by Step Solution

1. Step 1: Write the proportion equation
   4,021,692 : 8,765,928 = 8,765,928 : x
2. Step 2: Convert to fraction form
   4,021,692/8,765,928 = 8,765,928/x
3. Step 3: Cross multiply
   4,021,692x = 8,765,928 × 8,765,928
4. Step 4: Simplify right side
   4,021,692x = 76,841,493,701,184
5. Step 5: Solve for x
   x = 76,841,493,701,184/4,021,692
6. Step 6: Final answer
   x = 19,106,757.48