Finding the Third Proportional to 1,388,900 and 3,043,720

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388,900 : 3,043,720 = 3,043,720 : x
2. Step 2: Convert to fraction form
   1,388,900/3,043,720 = 3,043,720/x
3. Step 3: Cross multiply
   1,388,900x = 3,043,720 × 3,043,720
4. Step 4: Simplify right side
   1,388,900x = 9,264,231,438,400
5. Step 5: Solve for x
   x = 9,264,231,438,400/1,388,900
6. Step 6: Final answer
   x = 6,670,193.27