Finding the Third Proportional to 86,139 and 182,700

Step by Step Solution

1. Step 1: Write the proportion equation
   86,139 : 182,700 = 182,700 : x
2. Step 2: Convert to fraction form
   86,139/182,700 = 182,700/x
3. Step 3: Cross multiply
   86,139x = 182,700 × 182,700
4. Step 4: Simplify right side
   86,139x = 33,379,290,000
5. Step 5: Solve for x
   x = 33,379,290,000/86,139
6. Step 6: Final answer
   x = 387,504.96