Finding the Third Proportional to 85,580.50 and 182,610

Step by Step Solution

1. Step 1: Write the proportion equation
   85,580.50 : 182,610 = 182,610 : x
2. Step 2: Convert to fraction form
   85,580.50/182,610 = 182,610/x
3. Step 3: Cross multiply
   85,580.50x = 182,610 × 182,610
4. Step 4: Simplify right side
   85,580.50x = 33,346,412,100
5. Step 5: Solve for x
   x = 33,346,412,100/85,580.50
6. Step 6: Final answer
   x = 389,649.65