Finding the Third Proportional to 39,843.75 and 86,697.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,843.75 : 86,697.75 = 86,697.75 : x
2. Step 2: Convert to fraction form
   39,843.75/86,697.75 = 86,697.75/x
3. Step 3: Cross multiply
   39,843.75x = 86,697.75 × 86,697.75
4. Step 4: Simplify right side
   39,843.75x = 7,516,499,855.06
5. Step 5: Solve for x
   x = 7,516,499,855.06/39,843.75
6. Step 6: Final answer
   x = 188,649.41