Finding the Third Proportional to 90,145.41 and 194,745.52

Step by Step Solution

1. Step 1: Write the proportion equation
   90,145.41 : 194,745.52 = 194,745.52 : x
2. Step 2: Convert to fraction form
   90,145.41/194,745.52 = 194,745.52/x
3. Step 3: Cross multiply
   90,145.41x = 194,745.52 × 194,745.52
4. Step 4: Simplify right side
   90,145.41x = 37,925,815,856.05
5. Step 5: Solve for x
   x = 37,925,815,856.05/90,145.41
6. Step 6: Final answer
   x = 420,718.23