Finding the Third Proportional to 4,128,904 and 8,548,132

Step by Step Solution

1. Step 1: Write the proportion equation
   4,128,904 : 8,548,132 = 8,548,132 : x
2. Step 2: Convert to fraction form
   4,128,904/8,548,132 = 8,548,132/x
3. Step 3: Cross multiply
   4,128,904x = 8,548,132 × 8,548,132
4. Step 4: Simplify right side
   4,128,904x = 73,070,560,689,424
5. Step 5: Solve for x
   x = 73,070,560,689,424/4,128,904
6. Step 6: Final answer
   x = 17,697,326.14