Finding the Third Proportional to 89,889 and 199,730.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,889 : 199,730.25 = 199,730.25 : x
2. Step 2: Convert to fraction form
   89,889/199,730.25 = 199,730.25/x
3. Step 3: Cross multiply
   89,889x = 199,730.25 × 199,730.25
4. Step 4: Simplify right side
   89,889x = 39,892,172,765.06
5. Step 5: Solve for x
   x = 39,892,172,765.06/89,889
6. Step 6: Final answer
   x = 443,793.71