Finding the Third Proportional to 6,429,838 and 9,947,104

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429,838 : 9,947,104 = 9,947,104 : x
2. Step 2: Convert to fraction form
   6,429,838/9,947,104 = 9,947,104/x
3. Step 3: Cross multiply
   6,429,838x = 9,947,104 × 9,947,104
4. Step 4: Simplify right side
   6,429,838x = 98,944,877,986,816
5. Step 5: Solve for x
   x = 98,944,877,986,816/6,429,838
6. Step 6: Final answer
   x = 15,388,393.61