Finding the Third Proportional to 3,899,928 and 8,696,049

Step by Step Solution

1. Step 1: Write the proportion equation
   3,899,928 : 8,696,049 = 8,696,049 : x
2. Step 2: Convert to fraction form
   3,899,928/8,696,049 = 8,696,049/x
3. Step 3: Cross multiply
   3,899,928x = 8,696,049 × 8,696,049
4. Step 4: Simplify right side
   3,899,928x = 75,621,268,210,401
5. Step 5: Solve for x
   x = 75,621,268,210,401/3,899,928
6. Step 6: Final answer
   x = 19,390,426.75