Finding the Third Proportional to 1,719,489 and 3,643,804

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719,489 : 3,643,804 = 3,643,804 : x
2. Step 2: Convert to fraction form
   1,719,489/3,643,804 = 3,643,804/x
3. Step 3: Cross multiply
   1,719,489x = 3,643,804 × 3,643,804
4. Step 4: Simplify right side
   1,719,489x = 13,277,307,590,416
5. Step 5: Solve for x
   x = 13,277,307,590,416/1,719,489
6. Step 6: Final answer
   x = 7,721,658.93