Finding the Third Proportional to 98,456.50 and 215,975

Step by Step Solution

1. Step 1: Write the proportion equation
   98,456.50 : 215,975 = 215,975 : x
2. Step 2: Convert to fraction form
   98,456.50/215,975 = 215,975/x
3. Step 3: Cross multiply
   98,456.50x = 215,975 × 215,975
4. Step 4: Simplify right side
   98,456.50x = 46,645,200,625
5. Step 5: Solve for x
   x = 46,645,200,625/98,456.50
6. Step 6: Final answer
   x = 473,764.56