Finding the Third Proportional to 356,832 and 553,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   356,832 : 553,369.50 = 553,369.50 : x
2. Step 2: Convert to fraction form
   356,832/553,369.50 = 553,369.50/x
3. Step 3: Cross multiply
   356,832x = 553,369.50 × 553,369.50
4. Step 4: Simplify right side
   356,832x = 306,217,803,530.25
5. Step 5: Solve for x
   x = 306,217,803,530.25/356,832
6. Step 6: Final answer
   x = 858,156.79