Finding the Third Proportional to 12,315 and 17,923.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,315 : 17,923.50 = 17,923.50 : x
2. Step 2: Convert to fraction form
   12,315/17,923.50 = 17,923.50/x
3. Step 3: Cross multiply
   12,315x = 17,923.50 × 17,923.50
4. Step 4: Simplify right side
   12,315x = 321,251,852.25
5. Step 5: Solve for x
   x = 321,251,852.25/12,315
6. Step 6: Final answer
   x = 26,086.22