Finding the Third Proportional to 90,355.50 and 193,212

Step by Step Solution

1. Step 1: Write the proportion equation
   90,355.50 : 193,212 = 193,212 : x
2. Step 2: Convert to fraction form
   90,355.50/193,212 = 193,212/x
3. Step 3: Cross multiply
   90,355.50x = 193,212 × 193,212
4. Step 4: Simplify right side
   90,355.50x = 37,330,876,944
5. Step 5: Solve for x
   x = 37,330,876,944/90,355.50
6. Step 6: Final answer
   x = 413,155.56