Finding the Third Proportional to 3,467,904 and 7,447,129

Step by Step Solution

1. Step 1: Write the proportion equation
   3,467,904 : 7,447,129 = 7,447,129 : x
2. Step 2: Convert to fraction form
   3,467,904/7,447,129 = 7,447,129/x
3. Step 3: Cross multiply
   3,467,904x = 7,447,129 × 7,447,129
4. Step 4: Simplify right side
   3,467,904x = 55,459,730,342,641
5. Step 5: Solve for x
   x = 55,459,730,342,641/3,467,904
6. Step 6: Final answer
   x = 15,992,291.12