Finding the Third Proportional to 984,344 and 2,139,440

Step by Step Solution

1. Step 1: Write the proportion equation
   984,344 : 2,139,440 = 2,139,440 : x
2. Step 2: Convert to fraction form
   984,344/2,139,440 = 2,139,440/x
3. Step 3: Cross multiply
   984,344x = 2,139,440 × 2,139,440
4. Step 4: Simplify right side
   984,344x = 4,577,203,513,600
5. Step 5: Solve for x
   x = 4,577,203,513,600/984,344
6. Step 6: Final answer
   x = 4,650,003.98