Finding the Third Proportional to 103,300 and 223,988

Step by Step Solution

1. Step 1: Write the proportion equation
   103,300 : 223,988 = 223,988 : x
2. Step 2: Convert to fraction form
   103,300/223,988 = 223,988/x
3. Step 3: Cross multiply
   103,300x = 223,988 × 223,988
4. Step 4: Simplify right side
   103,300x = 50,170,624,144
5. Step 5: Solve for x
   x = 50,170,624,144/103,300
6. Step 6: Final answer
   x = 485,678.84