Finding the Third Proportional to 12,638.25 and 19,484.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,638.25 : 19,484.63 = 19,484.63 : x
2. Step 2: Convert to fraction form
   12,638.25/19,484.63 = 19,484.63/x
3. Step 3: Cross multiply
   12,638.25x = 19,484.63 × 19,484.63
4. Step 4: Simplify right side
   12,638.25x = 379,650,611.39
5. Step 5: Solve for x
   x = 379,650,611.39/12,638.25
6. Step 6: Final answer
   x = 30,039.81