Finding the Third Proportional to 170,698.50 and 374,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   170,698.50 : 374,050.50 = 374,050.50 : x
2. Step 2: Convert to fraction form
   170,698.50/374,050.50 = 374,050.50/x
3. Step 3: Cross multiply
   170,698.50x = 374,050.50 × 374,050.50
4. Step 4: Simplify right side
   170,698.50x = 139,913,776,550.25
5. Step 5: Solve for x
   x = 139,913,776,550.25/170,698.50
6. Step 6: Final answer
   x = 819,654.40