Finding the Third Proportional to 20,807.30 and 31,729.22

Step by Step Solution

1. Step 1: Write the proportion equation
   20,807.30 : 31,729.22 = 31,729.22 : x
2. Step 2: Convert to fraction form
   20,807.30/31,729.22 = 31,729.22/x
3. Step 3: Cross multiply
   20,807.30x = 31,729.22 × 31,729.22
4. Step 4: Simplify right side
   20,807.30x = 1,006,743,322.49
5. Step 5: Solve for x
   x = 1,006,743,322.49/20,807.30
6. Step 6: Final answer
   x = 48,384.15