Finding the Third Proportional to 17,806.78 and 38,723.06

Step by Step Solution

1. Step 1: Write the proportion equation
   17,806.78 : 38,723.06 = 38,723.06 : x
2. Step 2: Convert to fraction form
   17,806.78/38,723.06 = 38,723.06/x
3. Step 3: Cross multiply
   17,806.78x = 38,723.06 × 38,723.06
4. Step 4: Simplify right side
   17,806.78x = 1,499,475,569.38
5. Step 5: Solve for x
   x = 1,499,475,569.38/17,806.78
6. Step 6: Final answer
   x = 84,208.12