Finding the Third Proportional to 98,988 and 215,843

Step by Step Solution

1. Step 1: Write the proportion equation
   98,988 : 215,843 = 215,843 : x
2. Step 2: Convert to fraction form
   98,988/215,843 = 215,843/x
3. Step 3: Cross multiply
   98,988x = 215,843 × 215,843
4. Step 4: Simplify right side
   98,988x = 46,588,200,649
5. Step 5: Solve for x
   x = 46,588,200,649/98,988
6. Step 6: Final answer
   x = 470,644.93