Finding the Third Proportional to 12,339 and 28,525.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,339 : 28,525.50 = 28,525.50 : x
2. Step 2: Convert to fraction form
   12,339/28,525.50 = 28,525.50/x
3. Step 3: Cross multiply
   12,339x = 28,525.50 × 28,525.50
4. Step 4: Simplify right side
   12,339x = 813,704,150.25
5. Step 5: Solve for x
   x = 813,704,150.25/12,339
6. Step 6: Final answer
   x = 65,945.71