Finding the Third Proportional to 12,607.50 and 19,776.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,607.50 : 19,776.75 = 19,776.75 : x
2. Step 2: Convert to fraction form
   12,607.50/19,776.75 = 19,776.75/x
3. Step 3: Cross multiply
   12,607.50x = 19,776.75 × 19,776.75
4. Step 4: Simplify right side
   12,607.50x = 391,119,840.56
5. Step 5: Solve for x
   x = 391,119,840.56/12,607.50
6. Step 6: Final answer
   x = 31,022.79