Finding the Third Proportional to 2,128,485 and 4,533,018

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,485 : 4,533,018 = 4,533,018 : x
2. Step 2: Convert to fraction form
   2,128,485/4,533,018 = 4,533,018/x
3. Step 3: Cross multiply
   2,128,485x = 4,533,018 × 4,533,018
4. Step 4: Simplify right side
   2,128,485x = 20,548,252,188,324
5. Step 5: Solve for x
   x = 20,548,252,188,324/2,128,485
6. Step 6: Final answer
   x = 9,653,933.29