Finding the Third Proportional to 12,372.75 and 18,664.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,372.75 : 18,664.88 = 18,664.88 : x
2. Step 2: Convert to fraction form
   12,372.75/18,664.88 = 18,664.88/x
3. Step 3: Cross multiply
   12,372.75x = 18,664.88 × 18,664.88
4. Step 4: Simplify right side
   12,372.75x = 348,377,558.77
5. Step 5: Solve for x
   x = 348,377,558.77/12,372.75
6. Step 6: Final answer
   x = 28,156.84