Finding the Third Proportional to 166,900 and 371,115.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,900 : 371,115.50 = 371,115.50 : x
2. Step 2: Convert to fraction form
   166,900/371,115.50 = 371,115.50/x
3. Step 3: Cross multiply
   166,900x = 371,115.50 × 371,115.50
4. Step 4: Simplify right side
   166,900x = 137,726,714,340.25
5. Step 5: Solve for x
   x = 137,726,714,340.25/166,900
6. Step 6: Final answer
   x = 825,205.00