Finding the Third Proportional to 9,646,780 and 20,087,401

Step by Step Solution

1. Step 1: Write the proportion equation
   9,646,780 : 20,087,401 = 20,087,401 : x
2. Step 2: Convert to fraction form
   9,646,780/20,087,401 = 20,087,401/x
3. Step 3: Cross multiply
   9,646,780x = 20,087,401 × 20,087,401
4. Step 4: Simplify right side
   9,646,780x = 403,503,678,934,801
5. Step 5: Solve for x
   x = 403,503,678,934,801/9,646,780
6. Step 6: Final answer
   x = 41,827,809.79