Finding the Third Proportional to 7,845.56 and 12,018.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,845.56 : 12,018.94 = 12,018.94 : x
2. Step 2: Convert to fraction form
   7,845.56/12,018.94 = 12,018.94/x
3. Step 3: Cross multiply
   7,845.56x = 12,018.94 × 12,018.94
4. Step 4: Simplify right side
   7,845.56x = 144,454,858.63
5. Step 5: Solve for x
   x = 144,454,858.63/7,845.56
6. Step 6: Final answer
   x = 18,412.30