Finding the Third Proportional to 3,869,820 and 9,036,675

Step by Step Solution

1. Step 1: Write the proportion equation
   3,869,820 : 9,036,675 = 9,036,675 : x
2. Step 2: Convert to fraction form
   3,869,820/9,036,675 = 9,036,675/x
3. Step 3: Cross multiply
   3,869,820x = 9,036,675 × 9,036,675
4. Step 4: Simplify right side
   3,869,820x = 81,661,495,055,625
5. Step 5: Solve for x
   x = 81,661,495,055,625/3,869,820
6. Step 6: Final answer
   x = 21,102,143.01