Finding the Third Proportional to 4,057,212 and 8,567,123

Step by Step Solution

1. Step 1: Write the proportion equation
   4,057,212 : 8,567,123 = 8,567,123 : x
2. Step 2: Convert to fraction form
   4,057,212/8,567,123 = 8,567,123/x
3. Step 3: Cross multiply
   4,057,212x = 8,567,123 × 8,567,123
4. Step 4: Simplify right side
   4,057,212x = 73,395,596,497,129
5. Step 5: Solve for x
   x = 73,395,596,497,129/4,057,212
6. Step 6: Final answer
   x = 18,090,155.63