Finding the Third Proportional to 121,610.50 and 194,270

Step by Step Solution

1. Step 1: Write the proportion equation
   121,610.50 : 194,270 = 194,270 : x
2. Step 2: Convert to fraction form
   121,610.50/194,270 = 194,270/x
3. Step 3: Cross multiply
   121,610.50x = 194,270 × 194,270
4. Step 4: Simplify right side
   121,610.50x = 37,740,832,900
5. Step 5: Solve for x
   x = 37,740,832,900/121,610.50
6. Step 6: Final answer
   x = 310,341.89