Finding the Third Proportional to 1,831,562 and 3,978,412

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831,562 : 3,978,412 = 3,978,412 : x
2. Step 2: Convert to fraction form
   1,831,562/3,978,412 = 3,978,412/x
3. Step 3: Cross multiply
   1,831,562x = 3,978,412 × 3,978,412
4. Step 4: Simplify right side
   1,831,562x = 15,827,762,041,744
5. Step 5: Solve for x
   x = 15,827,762,041,744/1,831,562
6. Step 6: Final answer
   x = 8,641,674.18