Finding the Third Proportional to 2,172,685 and 4,676,701

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,685 : 4,676,701 = 4,676,701 : x
2. Step 2: Convert to fraction form
   2,172,685/4,676,701 = 4,676,701/x
3. Step 3: Cross multiply
   2,172,685x = 4,676,701 × 4,676,701
4. Step 4: Simplify right side
   2,172,685x = 21,871,532,243,401
5. Step 5: Solve for x
   x = 21,871,532,243,401/2,172,685
6. Step 6: Final answer
   x = 10,066,591.45