Finding the Third Proportional to 1,953,078 and 4,278,530

Step by Step Solution

1. Step 1: Write the proportion equation
   1,953,078 : 4,278,530 = 4,278,530 : x
2. Step 2: Convert to fraction form
   1,953,078/4,278,530 = 4,278,530/x
3. Step 3: Cross multiply
   1,953,078x = 4,278,530 × 4,278,530
4. Step 4: Simplify right side
   1,953,078x = 18,305,818,960,900
5. Step 5: Solve for x
   x = 18,305,818,960,900/1,953,078
6. Step 6: Final answer
   x = 9,372,804.86