Finding the Third Proportional to 124,224 and 196,800

Step by Step Solution

1. Step 1: Write the proportion equation
   124,224 : 196,800 = 196,800 : x
2. Step 2: Convert to fraction form
   124,224/196,800 = 196,800/x
3. Step 3: Cross multiply
   124,224x = 196,800 × 196,800
4. Step 4: Simplify right side
   124,224x = 38,730,240,000
5. Step 5: Solve for x
   x = 38,730,240,000/124,224
6. Step 6: Final answer
   x = 311,777.43