Finding the Third Proportional to 1,980,815 and 4,340,227

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980,815 : 4,340,227 = 4,340,227 : x
2. Step 2: Convert to fraction form
   1,980,815/4,340,227 = 4,340,227/x
3. Step 3: Cross multiply
   1,980,815x = 4,340,227 × 4,340,227
4. Step 4: Simplify right side
   1,980,815x = 18,837,570,411,529
5. Step 5: Solve for x
   x = 18,837,570,411,529/1,980,815
6. Step 6: Final answer
   x = 9,510,009.98