Finding the Third Proportional to 4,939.31 and 9,422.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,939.31 : 9,422.16 = 9,422.16 : x
2. Step 2: Convert to fraction form
   4,939.31/9,422.16 = 9,422.16/x
3. Step 3: Cross multiply
   4,939.31x = 9,422.16 × 9,422.16
4. Step 4: Simplify right side
   4,939.31x = 88,777,028.40
5. Step 5: Solve for x
   x = 88,777,028.40/4,939.31
6. Step 6: Final answer
   x = 17,973.56