Finding the Third Proportional to 17,632.50 and 19,477.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,632.50 : 19,477.50 = 19,477.50 : x
2. Step 2: Convert to fraction form
   17,632.50/19,477.50 = 19,477.50/x
3. Step 3: Cross multiply
   17,632.50x = 19,477.50 × 19,477.50
4. Step 4: Simplify right side
   17,632.50x = 379,373,006.25
5. Step 5: Solve for x
   x = 379,373,006.25/17,632.50
6. Step 6: Final answer
   x = 21,515.55