Finding the Third Proportional to 98,590.50 and 215,838

Step by Step Solution

1. Step 1: Write the proportion equation
   98,590.50 : 215,838 = 215,838 : x
2. Step 2: Convert to fraction form
   98,590.50/215,838 = 215,838/x
3. Step 3: Cross multiply
   98,590.50x = 215,838 × 215,838
4. Step 4: Simplify right side
   98,590.50x = 46,586,042,244
5. Step 5: Solve for x
   x = 46,586,042,244/98,590.50
6. Step 6: Final answer
   x = 472,520.60