Finding the Third Proportional to 12,799.88 and 20,035.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,799.88 : 20,035.69 = 20,035.69 : x
2. Step 2: Convert to fraction form
   12,799.88/20,035.69 = 20,035.69/x
3. Step 3: Cross multiply
   12,799.88x = 20,035.69 × 20,035.69
4. Step 4: Simplify right side
   12,799.88x = 401,428,773.60
5. Step 5: Solve for x
   x = 401,428,773.60/12,799.88
6. Step 6: Final answer
   x = 31,361.93