Finding the Third Proportional to 1,428,230 and 1,958,439

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,230 : 1,958,439 = 1,958,439 : x
2. Step 2: Convert to fraction form
   1,428,230/1,958,439 = 1,958,439/x
3. Step 3: Cross multiply
   1,428,230x = 1,958,439 × 1,958,439
4. Step 4: Simplify right side
   1,428,230x = 3,835,483,316,721
5. Step 5: Solve for x
   x = 3,835,483,316,721/1,428,230
6. Step 6: Final answer
   x = 2,685,480.15