Finding the Third Proportional to 85,860.94 and 186,499.88

Step by Step Solution

1. Step 1: Write the proportion equation
   85,860.94 : 186,499.88 = 186,499.88 : x
2. Step 2: Convert to fraction form
   85,860.94/186,499.88 = 186,499.88/x
3. Step 3: Cross multiply
   85,860.94x = 186,499.88 × 186,499.88
4. Step 4: Simplify right side
   85,860.94x = 34,782,203,375.02
5. Step 5: Solve for x
   x = 34,782,203,375.02/85,860.94
6. Step 6: Final answer
   x = 405,099.27