Finding the Third Proportional to 86,505.38 and 185,942.63

Step by Step Solution

1. Step 1: Write the proportion equation
   86,505.38 : 185,942.63 = 185,942.63 : x
2. Step 2: Convert to fraction form
   86,505.38/185,942.63 = 185,942.63/x
3. Step 3: Cross multiply
   86,505.38x = 185,942.63 × 185,942.63
4. Step 4: Simplify right side
   86,505.38x = 34,574,659,791.89
5. Step 5: Solve for x
   x = 34,574,659,791.89/86,505.38
6. Step 6: Final answer
   x = 399,682.21