Finding the Third Proportional to 12,658.50 and 21,093.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,658.50 : 21,093.75 = 21,093.75 : x
2. Step 2: Convert to fraction form
   12,658.50/21,093.75 = 21,093.75/x
3. Step 3: Cross multiply
   12,658.50x = 21,093.75 × 21,093.75
4. Step 4: Simplify right side
   12,658.50x = 444,946,289.06
5. Step 5: Solve for x
   x = 444,946,289.06/12,658.50
6. Step 6: Final answer
   x = 35,150.00