Finding the Third Proportional to 1,728,900 and 3,724,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728,900 : 3,724,128 = 3,724,128 : x
2. Step 2: Convert to fraction form
   1,728,900/3,724,128 = 3,724,128/x
3. Step 3: Cross multiply
   1,728,900x = 3,724,128 × 3,724,128
4. Step 4: Simplify right side
   1,728,900x = 13,869,129,360,384
5. Step 5: Solve for x
   x = 13,869,129,360,384/1,728,900
6. Step 6: Final answer
   x = 8,021,938.44