Finding the Third Proportional to 2,192.91 and 4,426.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.91 : 4,426.31 = 4,426.31 : x
2. Step 2: Convert to fraction form
   2,192.91/4,426.31 = 4,426.31/x
3. Step 3: Cross multiply
   2,192.91x = 4,426.31 × 4,426.31
4. Step 4: Simplify right side
   2,192.91x = 19,592,242.35
5. Step 5: Solve for x
   x = 19,592,242.35/2,192.91
6. Step 6: Final answer
   x = 8,934.37