Finding the Third Proportional to 166,238 and 344,300

Step by Step Solution

1. Step 1: Write the proportion equation
   166,238 : 344,300 = 344,300 : x
2. Step 2: Convert to fraction form
   166,238/344,300 = 344,300/x
3. Step 3: Cross multiply
   166,238x = 344,300 × 344,300
4. Step 4: Simplify right side
   166,238x = 118,542,490,000
5. Step 5: Solve for x
   x = 118,542,490,000/166,238
6. Step 6: Final answer
   x = 713,089.00