Finding the Third Proportional to 124,303.50 and 197,142

Step by Step Solution

1. Step 1: Write the proportion equation
   124,303.50 : 197,142 = 197,142 : x
2. Step 2: Convert to fraction form
   124,303.50/197,142 = 197,142/x
3. Step 3: Cross multiply
   124,303.50x = 197,142 × 197,142
4. Step 4: Simplify right side
   124,303.50x = 38,864,968,164
5. Step 5: Solve for x
   x = 38,864,968,164/124,303.50
6. Step 6: Final answer
   x = 312,661.90