Finding the Third Proportional to 3,628,856 and 7,812,400

Step by Step Solution

1. Step 1: Write the proportion equation
   3,628,856 : 7,812,400 = 7,812,400 : x
2. Step 2: Convert to fraction form
   3,628,856/7,812,400 = 7,812,400/x
3. Step 3: Cross multiply
   3,628,856x = 7,812,400 × 7,812,400
4. Step 4: Simplify right side
   3,628,856x = 61,033,593,760,000
5. Step 5: Solve for x
   x = 61,033,593,760,000/3,628,856
6. Step 6: Final answer
   x = 16,818,962.71