Finding the Third Proportional to 20,236.88 and 31,415.06

Step by Step Solution

1. Step 1: Write the proportion equation
   20,236.88 : 31,415.06 = 31,415.06 : x
2. Step 2: Convert to fraction form
   20,236.88/31,415.06 = 31,415.06/x
3. Step 3: Cross multiply
   20,236.88x = 31,415.06 × 31,415.06
4. Step 4: Simplify right side
   20,236.88x = 986,906,151.88
5. Step 5: Solve for x
   x = 986,906,151.88/20,236.88
6. Step 6: Final answer
   x = 48,767.71