Finding the Third Proportional to 8,160,672 and 12,592,128

Step by Step Solution

1. Step 1: Write the proportion equation
   8,160,672 : 12,592,128 = 12,592,128 : x
2. Step 2: Convert to fraction form
   8,160,672/12,592,128 = 12,592,128/x
3. Step 3: Cross multiply
   8,160,672x = 12,592,128 × 12,592,128
4. Step 4: Simplify right side
   8,160,672x = 158,561,687,568,384
5. Step 5: Solve for x
   x = 158,561,687,568,384/8,160,672
6. Step 6: Final answer
   x = 19,429,979.24