Finding the Third Proportional to 89,668.50 and 190,272

Step by Step Solution

1. Step 1: Write the proportion equation
   89,668.50 : 190,272 = 190,272 : x
2. Step 2: Convert to fraction form
   89,668.50/190,272 = 190,272/x
3. Step 3: Cross multiply
   89,668.50x = 190,272 × 190,272
4. Step 4: Simplify right side
   89,668.50x = 36,203,433,984
5. Step 5: Solve for x
   x = 36,203,433,984/89,668.50
6. Step 6: Final answer
   x = 403,747.51