Finding the Third Proportional to 1,719,419 and 3,578,386

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719,419 : 3,578,386 = 3,578,386 : x
2. Step 2: Convert to fraction form
   1,719,419/3,578,386 = 3,578,386/x
3. Step 3: Cross multiply
   1,719,419x = 3,578,386 × 3,578,386
4. Step 4: Simplify right side
   1,719,419x = 12,804,846,364,996
5. Step 5: Solve for x
   x = 12,804,846,364,996/1,719,419
6. Step 6: Final answer
   x = 7,447,193.71