Finding the Third Proportional to 192,452.50 and 277,221

Step by Step Solution

1. Step 1: Write the proportion equation
   192,452.50 : 277,221 = 277,221 : x
2. Step 2: Convert to fraction form
   192,452.50/277,221 = 277,221/x
3. Step 3: Cross multiply
   192,452.50x = 277,221 × 277,221
4. Step 4: Simplify right side
   192,452.50x = 76,851,482,841
5. Step 5: Solve for x
   x = 76,851,482,841/192,452.50
6. Step 6: Final answer
   x = 399,327.02