Finding the Third Proportional to 16,215 and 25,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,215 : 25,192.50 = 25,192.50 : x
2. Step 2: Convert to fraction form
   16,215/25,192.50 = 25,192.50/x
3. Step 3: Cross multiply
   16,215x = 25,192.50 × 25,192.50
4. Step 4: Simplify right side
   16,215x = 634,662,056.25
5. Step 5: Solve for x
   x = 634,662,056.25/16,215
6. Step 6: Final answer
   x = 39,140.43