Finding the Third Proportional to 12,111.75 and 24,889.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.75 : 24,889.50 = 24,889.50 : x
2. Step 2: Convert to fraction form
   12,111.75/24,889.50 = 24,889.50/x
3. Step 3: Cross multiply
   12,111.75x = 24,889.50 × 24,889.50
4. Step 4: Simplify right side
   12,111.75x = 619,487,210.25
5. Step 5: Solve for x
   x = 619,487,210.25/12,111.75
6. Step 6: Final answer
   x = 51,147.62