Finding the Third Proportional to 192,914.50 and 423,180

Step by Step Solution

1. Step 1: Write the proportion equation
   192,914.50 : 423,180 = 423,180 : x
2. Step 2: Convert to fraction form
   192,914.50/423,180 = 423,180/x
3. Step 3: Cross multiply
   192,914.50x = 423,180 × 423,180
4. Step 4: Simplify right side
   192,914.50x = 179,081,312,400
5. Step 5: Solve for x
   x = 179,081,312,400/192,914.50
6. Step 6: Final answer
   x = 928,293.69