Finding the Third Proportional to 39,917.81 and 86,583.94

Step by Step Solution

1. Step 1: Write the proportion equation
   39,917.81 : 86,583.94 = 86,583.94 : x
2. Step 2: Convert to fraction form
   39,917.81/86,583.94 = 86,583.94/x
3. Step 3: Cross multiply
   39,917.81x = 86,583.94 × 86,583.94
4. Step 4: Simplify right side
   39,917.81x = 7,496,778,233.00
5. Step 5: Solve for x
   x = 7,496,778,233.00/39,917.81
6. Step 6: Final answer
   x = 187,805.34