Finding the Third Proportional to 5,315,888 and 7,972,104

Step by Step Solution

1. Step 1: Write the proportion equation
   5,315,888 : 7,972,104 = 7,972,104 : x
2. Step 2: Convert to fraction form
   5,315,888/7,972,104 = 7,972,104/x
3. Step 3: Cross multiply
   5,315,888x = 7,972,104 × 7,972,104
4. Step 4: Simplify right side
   5,315,888x = 63,554,442,186,816
5. Step 5: Solve for x
   x = 63,554,442,186,816/5,315,888
6. Step 6: Final answer
   x = 11,955,564.56