Finding the Third Proportional to 191,704 and 403,238

Step by Step Solution

1. Step 1: Write the proportion equation
   191,704 : 403,238 = 403,238 : x
2. Step 2: Convert to fraction form
   191,704/403,238 = 403,238/x
3. Step 3: Cross multiply
   191,704x = 403,238 × 403,238
4. Step 4: Simplify right side
   191,704x = 162,600,884,644
5. Step 5: Solve for x
   x = 162,600,884,644/191,704
6. Step 6: Final answer
   x = 848,187.23