Finding the Third Proportional to 3,637,836 and 7,921,521

Step by Step Solution

1. Step 1: Write the proportion equation
   3,637,836 : 7,921,521 = 7,921,521 : x
2. Step 2: Convert to fraction form
   3,637,836/7,921,521 = 7,921,521/x
3. Step 3: Cross multiply
   3,637,836x = 7,921,521 × 7,921,521
4. Step 4: Simplify right side
   3,637,836x = 62,750,494,953,441
5. Step 5: Solve for x
   x = 62,750,494,953,441/3,637,836
6. Step 6: Final answer
   x = 17,249,401.83