Finding the Third Proportional to 12,484.13 and 19,865.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,484.13 : 19,865.25 = 19,865.25 : x
2. Step 2: Convert to fraction form
   12,484.13/19,865.25 = 19,865.25/x
3. Step 3: Cross multiply
   12,484.13x = 19,865.25 × 19,865.25
4. Step 4: Simplify right side
   12,484.13x = 394,628,157.56
5. Step 5: Solve for x
   x = 394,628,157.56/12,484.13
6. Step 6: Final answer
   x = 31,610.40