Finding the Third Proportional to 3,553,804 and 5,197,420

Step by Step Solution

1. Step 1: Write the proportion equation
   3,553,804 : 5,197,420 = 5,197,420 : x
2. Step 2: Convert to fraction form
   3,553,804/5,197,420 = 5,197,420/x
3. Step 3: Cross multiply
   3,553,804x = 5,197,420 × 5,197,420
4. Step 4: Simplify right side
   3,553,804x = 27,013,174,656,400
5. Step 5: Solve for x
   x = 27,013,174,656,400/3,553,804
6. Step 6: Final answer
   x = 7,601,199.91