Finding the Third Proportional to 654,389 and 1,384,228

Step by Step Solution

1. Step 1: Write the proportion equation
   654,389 : 1,384,228 = 1,384,228 : x
2. Step 2: Convert to fraction form
   654,389/1,384,228 = 1,384,228/x
3. Step 3: Cross multiply
   654,389x = 1,384,228 × 1,384,228
4. Step 4: Simplify right side
   654,389x = 1,916,087,155,984
5. Step 5: Solve for x
   x = 1,916,087,155,984/654,389
6. Step 6: Final answer
   x = 2,928,055.26