Finding the Third Proportional to 178,399.50 and 374,310

Step by Step Solution

1. Step 1: Write the proportion equation
   178,399.50 : 374,310 = 374,310 : x
2. Step 2: Convert to fraction form
   178,399.50/374,310 = 374,310/x
3. Step 3: Cross multiply
   178,399.50x = 374,310 × 374,310
4. Step 4: Simplify right side
   178,399.50x = 140,107,976,100
5. Step 5: Solve for x
   x = 140,107,976,100/178,399.50
6. Step 6: Final answer
   x = 785,360.81