Finding the Third Proportional to 39,843 and 86,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,843 : 86,710.50 = 86,710.50 : x
2. Step 2: Convert to fraction form
   39,843/86,710.50 = 86,710.50/x
3. Step 3: Cross multiply
   39,843x = 86,710.50 × 86,710.50
4. Step 4: Simplify right side
   39,843x = 7,518,710,810.25
5. Step 5: Solve for x
   x = 7,518,710,810.25/39,843
6. Step 6: Final answer
   x = 188,708.45