Finding the Third Proportional to 3,628,842 and 7,812,372

Step by Step Solution

1. Step 1: Write the proportion equation
   3,628,842 : 7,812,372 = 7,812,372 : x
2. Step 2: Convert to fraction form
   3,628,842/7,812,372 = 7,812,372/x
3. Step 3: Cross multiply
   3,628,842x = 7,812,372 × 7,812,372
4. Step 4: Simplify right side
   3,628,842x = 61,033,156,266,384
5. Step 5: Solve for x
   x = 61,033,156,266,384/3,628,842
6. Step 6: Final answer
   x = 16,818,907.04