Finding the Third Proportional to 21,191.25 and 31,026.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,191.25 : 31,026.75 = 31,026.75 : x
2. Step 2: Convert to fraction form
   21,191.25/31,026.75 = 31,026.75/x
3. Step 3: Cross multiply
   21,191.25x = 31,026.75 × 31,026.75
4. Step 4: Simplify right side
   21,191.25x = 962,659,215.56
5. Step 5: Solve for x
   x = 962,659,215.56/21,191.25
6. Step 6: Final answer
   x = 45,427.20