Finding the Third Proportional to 3,423,629 and 7,229,173

Step by Step Solution

1. Step 1: Write the proportion equation
   3,423,629 : 7,229,173 = 7,229,173 : x
2. Step 2: Convert to fraction form
   3,423,629/7,229,173 = 7,229,173/x
3. Step 3: Cross multiply
   3,423,629x = 7,229,173 × 7,229,173
4. Step 4: Simplify right side
   3,423,629x = 52,260,942,263,929
5. Step 5: Solve for x
   x = 52,260,942,263,929/3,423,629
6. Step 6: Final answer
   x = 15,264,779.64