Finding the Third Proportional to 1,929,401 and 4,201,666

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929,401 : 4,201,666 = 4,201,666 : x
2. Step 2: Convert to fraction form
   1,929,401/4,201,666 = 4,201,666/x
3. Step 3: Cross multiply
   1,929,401x = 4,201,666 × 4,201,666
4. Step 4: Simplify right side
   1,929,401x = 17,653,997,175,556
5. Step 5: Solve for x
   x = 17,653,997,175,556/1,929,401
6. Step 6: Final answer
   x = 9,149,988.61