Finding the Third Proportional to 20,398.50 and 31,203.56

Step by Step Solution

1. Step 1: Write the proportion equation
   20,398.50 : 31,203.56 = 31,203.56 : x
2. Step 2: Convert to fraction form
   20,398.50/31,203.56 = 31,203.56/x
3. Step 3: Cross multiply
   20,398.50x = 31,203.56 × 31,203.56
4. Step 4: Simplify right side
   20,398.50x = 973,662,312.69
5. Step 5: Solve for x
   x = 973,662,312.69/20,398.50
6. Step 6: Final answer
   x = 47,732.05