Finding the Third Proportional to 166,858 and 345,544.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,858 : 345,544.50 = 345,544.50 : x
2. Step 2: Convert to fraction form
   166,858/345,544.50 = 345,544.50/x
3. Step 3: Cross multiply
   166,858x = 345,544.50 × 345,544.50
4. Step 4: Simplify right side
   166,858x = 119,401,001,480.25
5. Step 5: Solve for x
   x = 119,401,001,480.25/166,858
6. Step 6: Final answer
   x = 715,584.52