Finding the Third Proportional to 553,928 and 1,205,072

Step by Step Solution

1. Step 1: Write the proportion equation
   553,928 : 1,205,072 = 1,205,072 : x
2. Step 2: Convert to fraction form
   553,928/1,205,072 = 1,205,072/x
3. Step 3: Cross multiply
   553,928x = 1,205,072 × 1,205,072
4. Step 4: Simplify right side
   553,928x = 1,452,198,525,184
5. Step 5: Solve for x
   x = 1,452,198,525,184/553,928
6. Step 6: Final answer
   x = 2,621,637.70