Finding the Third Proportional to 98,551.50 and 216,180

Step by Step Solution

1. Step 1: Write the proportion equation
   98,551.50 : 216,180 = 216,180 : x
2. Step 2: Convert to fraction form
   98,551.50/216,180 = 216,180/x
3. Step 3: Cross multiply
   98,551.50x = 216,180 × 216,180
4. Step 4: Simplify right side
   98,551.50x = 46,733,792,400
5. Step 5: Solve for x
   x = 46,733,792,400/98,551.50
6. Step 6: Final answer
   x = 474,206.81