Finding the Third Proportional to 39,394.69 and 86,443.88

Step by Step Solution

1. Step 1: Write the proportion equation
   39,394.69 : 86,443.88 = 86,443.88 : x
2. Step 2: Convert to fraction form
   39,394.69/86,443.88 = 86,443.88/x
3. Step 3: Cross multiply
   39,394.69x = 86,443.88 × 86,443.88
4. Step 4: Simplify right side
   39,394.69x = 7,472,543,525.02
5. Step 5: Solve for x
   x = 7,472,543,525.02/39,394.69
6. Step 6: Final answer
   x = 189,684.04