Finding the Third Proportional to 124,188 and 196,732.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,188 : 196,732.50 = 196,732.50 : x
2. Step 2: Convert to fraction form
   124,188/196,732.50 = 196,732.50/x
3. Step 3: Cross multiply
   124,188x = 196,732.50 × 196,732.50
4. Step 4: Simplify right side
   124,188x = 38,703,676,556.25
5. Step 5: Solve for x
   x = 38,703,676,556.25/124,188
6. Step 6: Final answer
   x = 311,653.92