Finding the Third Proportional to 166,828.50 and 359,900

Step by Step Solution

1. Step 1: Write the proportion equation
   166,828.50 : 359,900 = 359,900 : x
2. Step 2: Convert to fraction form
   166,828.50/359,900 = 359,900/x
3. Step 3: Cross multiply
   166,828.50x = 359,900 × 359,900
4. Step 4: Simplify right side
   166,828.50x = 129,528,010,000
5. Step 5: Solve for x
   x = 129,528,010,000/166,828.50
6. Step 6: Final answer
   x = 776,414.16