Finding the Third Proportional to 175,015.50 and 378,051

Step by Step Solution

1. Step 1: Write the proportion equation
   175,015.50 : 378,051 = 378,051 : x
2. Step 2: Convert to fraction form
   175,015.50/378,051 = 378,051/x
3. Step 3: Cross multiply
   175,015.50x = 378,051 × 378,051
4. Step 4: Simplify right side
   175,015.50x = 142,922,558,601
5. Step 5: Solve for x
   x = 142,922,558,601/175,015.50
6. Step 6: Final answer
   x = 816,628.00