Finding the Third Proportional to 128,785.88 and 197,003.25

Step by Step Solution

1. Step 1: Write the proportion equation
   128,785.88 : 197,003.25 = 197,003.25 : x
2. Step 2: Convert to fraction form
   128,785.88/197,003.25 = 197,003.25/x
3. Step 3: Cross multiply
   128,785.88x = 197,003.25 × 197,003.25
4. Step 4: Simplify right side
   128,785.88x = 38,810,280,510.56
5. Step 5: Solve for x
   x = 38,810,280,510.56/128,785.88
6. Step 6: Final answer
   x = 301,355.10