Finding the Third Proportional to 166,686 and 366,742.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,686 : 366,742.50 = 366,742.50 : x
2. Step 2: Convert to fraction form
   166,686/366,742.50 = 366,742.50/x
3. Step 3: Cross multiply
   166,686x = 366,742.50 × 366,742.50
4. Step 4: Simplify right side
   166,686x = 134,500,061,306.25
5. Step 5: Solve for x
   x = 134,500,061,306.25/166,686
6. Step 6: Final answer
   x = 806,906.77