Finding the Third Proportional to 1,321,949 and 1,783,623

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321,949 : 1,783,623 = 1,783,623 : x
2. Step 2: Convert to fraction form
   1,321,949/1,783,623 = 1,783,623/x
3. Step 3: Cross multiply
   1,321,949x = 1,783,623 × 1,783,623
4. Step 4: Simplify right side
   1,321,949x = 3,181,311,006,129
5. Step 5: Solve for x
   x = 3,181,311,006,129/1,321,949
6. Step 6: Final answer
   x = 2,406,530.82