Finding the Third Proportional to 128,932.50 and 197,103

Step by Step Solution

1. Step 1: Write the proportion equation
   128,932.50 : 197,103 = 197,103 : x
2. Step 2: Convert to fraction form
   128,932.50/197,103 = 197,103/x
3. Step 3: Cross multiply
   128,932.50x = 197,103 × 197,103
4. Step 4: Simplify right side
   128,932.50x = 38,849,592,609
5. Step 5: Solve for x
   x = 38,849,592,609/128,932.50
6. Step 6: Final answer
   x = 301,317.30