Finding the Third Proportional to 39,841.88 and 86,928.19

Step by Step Solution

1. Step 1: Write the proportion equation
   39,841.88 : 86,928.19 = 86,928.19 : x
2. Step 2: Convert to fraction form
   39,841.88/86,928.19 = 86,928.19/x
3. Step 3: Cross multiply
   39,841.88x = 86,928.19 × 86,928.19
4. Step 4: Simplify right side
   39,841.88x = 7,556,509,782.04
5. Step 5: Solve for x
   x = 7,556,509,782.04/39,841.88
6. Step 6: Final answer
   x = 189,662.50