Finding the Third Proportional to 12,357.56 and 19,150.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.56 : 19,150.80 = 19,150.80 : x
2. Step 2: Convert to fraction form
   12,357.56/19,150.80 = 19,150.80/x
3. Step 3: Cross multiply
   12,357.56x = 19,150.80 × 19,150.80
4. Step 4: Simplify right side
   12,357.56x = 366,753,320.18
5. Step 5: Solve for x
   x = 366,753,320.18/12,357.56
6. Step 6: Final answer
   x = 29,678.45