Finding the Third Proportional to 5,429,934 and 10,722,804

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429,934 : 10,722,804 = 10,722,804 : x
2. Step 2: Convert to fraction form
   5,429,934/10,722,804 = 10,722,804/x
3. Step 3: Cross multiply
   5,429,934x = 10,722,804 × 10,722,804
4. Step 4: Simplify right side
   5,429,934x = 114,978,525,622,416
5. Step 5: Solve for x
   x = 114,978,525,622,416/5,429,934
6. Step 6: Final answer
   x = 21,174,939.81