Finding the Third Proportional to 192,691.50 and 406,155

Step by Step Solution

1. Step 1: Write the proportion equation
   192,691.50 : 406,155 = 406,155 : x
2. Step 2: Convert to fraction form
   192,691.50/406,155 = 406,155/x
3. Step 3: Cross multiply
   192,691.50x = 406,155 × 406,155
4. Step 4: Simplify right side
   192,691.50x = 164,961,884,025
5. Step 5: Solve for x
   x = 164,961,884,025/192,691.50
6. Step 6: Final answer
   x = 856,093.21