Finding the Third Proportional to 98,596.50 and 215,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,596.50 : 215,851.50 = 215,851.50 : x
2. Step 2: Convert to fraction form
   98,596.50/215,851.50 = 215,851.50/x
3. Step 3: Cross multiply
   98,596.50x = 215,851.50 × 215,851.50
4. Step 4: Simplify right side
   98,596.50x = 46,591,870,052.25
5. Step 5: Solve for x
   x = 46,591,870,052.25/98,596.50
6. Step 6: Final answer
   x = 472,550.95