Finding the Third Proportional to 1,237,434 and 2,621,308

Step by Step Solution

1. Step 1: Write the proportion equation
   1,237,434 : 2,621,308 = 2,621,308 : x
2. Step 2: Convert to fraction form
   1,237,434/2,621,308 = 2,621,308/x
3. Step 3: Cross multiply
   1,237,434x = 2,621,308 × 2,621,308
4. Step 4: Simplify right side
   1,237,434x = 6,871,255,630,864
5. Step 5: Solve for x
   x = 6,871,255,630,864/1,237,434
6. Step 6: Final answer
   x = 5,552,825.95