Finding the Third Proportional to 192,268 and 286,808.50

Step by Step Solution

1. Step 1: Write the proportion equation
   192,268 : 286,808.50 = 286,808.50 : x
2. Step 2: Convert to fraction form
   192,268/286,808.50 = 286,808.50/x
3. Step 3: Cross multiply
   192,268x = 286,808.50 × 286,808.50
4. Step 4: Simplify right side
   192,268x = 82,259,115,672.25
5. Step 5: Solve for x
   x = 82,259,115,672.25/192,268
6. Step 6: Final answer
   x = 427,835.71