Finding the Third Proportional to 3,521,010 and 7,420,299

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521,010 : 7,420,299 = 7,420,299 : x
2. Step 2: Convert to fraction form
   3,521,010/7,420,299 = 7,420,299/x
3. Step 3: Cross multiply
   3,521,010x = 7,420,299 × 7,420,299
4. Step 4: Simplify right side
   3,521,010x = 55,060,837,249,401
5. Step 5: Solve for x
   x = 55,060,837,249,401/3,521,010
6. Step 6: Final answer
   x = 15,637,796.33