Finding the Third Proportional to 103,632 and 216,648

Step by Step Solution

1. Step 1: Write the proportion equation
   103,632 : 216,648 = 216,648 : x
2. Step 2: Convert to fraction form
   103,632/216,648 = 216,648/x
3. Step 3: Cross multiply
   103,632x = 216,648 × 216,648
4. Step 4: Simplify right side
   103,632x = 46,936,355,904
5. Step 5: Solve for x
   x = 46,936,355,904/103,632
6. Step 6: Final answer
   x = 452,913.73