Finding the Third Proportional to 5,728,654 and 12,479,852

Step by Step Solution

1. Step 1: Write the proportion equation
   5,728,654 : 12,479,852 = 12,479,852 : x
2. Step 2: Convert to fraction form
   5,728,654/12,479,852 = 12,479,852/x
3. Step 3: Cross multiply
   5,728,654x = 12,479,852 × 12,479,852
4. Step 4: Simplify right side
   5,728,654x = 155,746,705,941,904
5. Step 5: Solve for x
   x = 155,746,705,941,904/5,728,654
6. Step 6: Final answer
   x = 27,187,312.40