Finding the Third Proportional to 176,953.50 and 378,936

Step by Step Solution

1. Step 1: Write the proportion equation
   176,953.50 : 378,936 = 378,936 : x
2. Step 2: Convert to fraction form
   176,953.50/378,936 = 378,936/x
3. Step 3: Cross multiply
   176,953.50x = 378,936 × 378,936
4. Step 4: Simplify right side
   176,953.50x = 143,592,492,096
5. Step 5: Solve for x
   x = 143,592,492,096/176,953.50
6. Step 6: Final answer
   x = 811,470.20