Finding the Third Proportional to 8,457,654 and 12,884,757

Step by Step Solution

1. Step 1: Write the proportion equation
   8,457,654 : 12,884,757 = 12,884,757 : x
2. Step 2: Convert to fraction form
   8,457,654/12,884,757 = 12,884,757/x
3. Step 3: Cross multiply
   8,457,654x = 12,884,757 × 12,884,757
4. Step 4: Simplify right side
   8,457,654x = 166,016,962,949,049
5. Step 5: Solve for x
   x = 166,016,962,949,049/8,457,654
6. Step 6: Final answer
   x = 19,629,197.76