Finding the Third Proportional to 1,548,639 and 3,396,411

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548,639 : 3,396,411 = 3,396,411 : x
2. Step 2: Convert to fraction form
   1,548,639/3,396,411 = 3,396,411/x
3. Step 3: Cross multiply
   1,548,639x = 3,396,411 × 3,396,411
4. Step 4: Simplify right side
   1,548,639x = 11,535,607,680,921
5. Step 5: Solve for x
   x = 11,535,607,680,921/1,548,639
6. Step 6: Final answer
   x = 7,448,868.12