Finding the Third Proportional to 20,625.75 and 31,991.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,625.75 : 31,991.63 = 31,991.63 : x
2. Step 2: Convert to fraction form
   20,625.75/31,991.63 = 31,991.63/x
3. Step 3: Cross multiply
   20,625.75x = 31,991.63 × 31,991.63
4. Step 4: Simplify right side
   20,625.75x = 1,023,464,070.14
5. Step 5: Solve for x
   x = 1,023,464,070.14/20,625.75
6. Step 6: Final answer
   x = 49,620.70