Finding the Third Proportional to 25,515 and 55,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,515 : 55,138.50 = 55,138.50 : x
2. Step 2: Convert to fraction form
   25,515/55,138.50 = 55,138.50/x
3. Step 3: Cross multiply
   25,515x = 55,138.50 × 55,138.50
4. Step 4: Simplify right side
   25,515x = 3,040,254,182.25
5. Step 5: Solve for x
   x = 3,040,254,182.25/25,515
6. Step 6: Final answer
   x = 119,155.56