Finding the Third Proportional to 89,693.50 and 190,320

Step by Step Solution

1. Step 1: Write the proportion equation
   89,693.50 : 190,320 = 190,320 : x
2. Step 2: Convert to fraction form
   89,693.50/190,320 = 190,320/x
3. Step 3: Cross multiply
   89,693.50x = 190,320 × 190,320
4. Step 4: Simplify right side
   89,693.50x = 36,221,702,400
5. Step 5: Solve for x
   x = 36,221,702,400/89,693.50
6. Step 6: Final answer
   x = 403,838.65