Finding the Third Proportional to 39,995.16 and 86,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,995.16 : 86,404.50 = 86,404.50 : x
2. Step 2: Convert to fraction form
   39,995.16/86,404.50 = 86,404.50/x
3. Step 3: Cross multiply
   39,995.16x = 86,404.50 × 86,404.50
4. Step 4: Simplify right side
   39,995.16x = 7,465,737,620.25
5. Step 5: Solve for x
   x = 7,465,737,620.25/39,995.16
6. Step 6: Final answer
   x = 186,666.04