Finding the Third Proportional to 19,930.50 and 31,268

Step by Step Solution

1. Step 1: Write the proportion equation
   19,930.50 : 31,268 = 31,268 : x
2. Step 2: Convert to fraction form
   19,930.50/31,268 = 31,268/x
3. Step 3: Cross multiply
   19,930.50x = 31,268 × 31,268
4. Step 4: Simplify right side
   19,930.50x = 977,687,824
5. Step 5: Solve for x
   x = 977,687,824/19,930.50
6. Step 6: Final answer
   x = 49,054.86