Finding the Third Proportional to 189,291.56 and 404,847.38

Step by Step Solution

1. Step 1: Write the proportion equation
   189,291.56 : 404,847.38 = 404,847.38 : x
2. Step 2: Convert to fraction form
   189,291.56/404,847.38 = 404,847.38/x
3. Step 3: Cross multiply
   189,291.56x = 404,847.38 × 404,847.38
4. Step 4: Simplify right side
   189,291.56x = 163,901,397,044.39
5. Step 5: Solve for x
   x = 163,901,397,044.39/189,291.56
6. Step 6: Final answer
   x = 865,867.42