Finding the Third Proportional to 4,888,440 and 7,182,972

Step by Step Solution

1. Step 1: Write the proportion equation
   4,888,440 : 7,182,972 = 7,182,972 : x
2. Step 2: Convert to fraction form
   4,888,440/7,182,972 = 7,182,972/x
3. Step 3: Cross multiply
   4,888,440x = 7,182,972 × 7,182,972
4. Step 4: Simplify right side
   4,888,440x = 51,595,086,752,784
5. Step 5: Solve for x
   x = 51,595,086,752,784/4,888,440
6. Step 6: Final answer
   x = 10,554,509.57