Finding the Third Proportional to 1,578,498 and 3,409,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,498 : 3,409,216 = 3,409,216 : x
2. Step 2: Convert to fraction form
   1,578,498/3,409,216 = 3,409,216/x
3. Step 3: Cross multiply
   1,578,498x = 3,409,216 × 3,409,216
4. Step 4: Simplify right side
   1,578,498x = 11,622,753,734,656
5. Step 5: Solve for x
   x = 11,622,753,734,656/1,578,498
6. Step 6: Final answer
   x = 7,363,172.92