Finding the Third Proportional to 17,992 and 39,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,992 : 39,561.50 = 39,561.50 : x
2. Step 2: Convert to fraction form
   17,992/39,561.50 = 39,561.50/x
3. Step 3: Cross multiply
   17,992x = 39,561.50 × 39,561.50
4. Step 4: Simplify right side
   17,992x = 1,565,112,282.25
5. Step 5: Solve for x
   x = 1,565,112,282.25/17,992
6. Step 6: Final answer
   x = 86,989.34