Finding the Third Proportional to 100,441.50 and 216,258

Step by Step Solution

1. Step 1: Write the proportion equation
   100,441.50 : 216,258 = 216,258 : x
2. Step 2: Convert to fraction form
   100,441.50/216,258 = 216,258/x
3. Step 3: Cross multiply
   100,441.50x = 216,258 × 216,258
4. Step 4: Simplify right side
   100,441.50x = 46,767,522,564
5. Step 5: Solve for x
   x = 46,767,522,564/100,441.50
6. Step 6: Final answer
   x = 465,619.52