Finding the Third Proportional to 12,903 and 28,155

Step by Step Solution

1. Step 1: Write the proportion equation
   12,903 : 28,155 = 28,155 : x
2. Step 2: Convert to fraction form
   12,903/28,155 = 28,155/x
3. Step 3: Cross multiply
   12,903x = 28,155 × 28,155
4. Step 4: Simplify right side
   12,903x = 792,704,025
5. Step 5: Solve for x
   x = 792,704,025/12,903
6. Step 6: Final answer
   x = 61,435.64