Finding the Third Proportional to 1,237,448 and 2,621,320

Step by Step Solution

1. Step 1: Write the proportion equation
   1,237,448 : 2,621,320 = 2,621,320 : x
2. Step 2: Convert to fraction form
   1,237,448/2,621,320 = 2,621,320/x
3. Step 3: Cross multiply
   1,237,448x = 2,621,320 × 2,621,320
4. Step 4: Simplify right side
   1,237,448x = 6,871,318,542,400
5. Step 5: Solve for x
   x = 6,871,318,542,400/1,237,448
6. Step 6: Final answer
   x = 5,552,813.97