Finding the Third Proportional to 368,404 and 553,974.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,404 : 553,974.50 = 553,974.50 : x
2. Step 2: Convert to fraction form
   368,404/553,974.50 = 553,974.50/x
3. Step 3: Cross multiply
   368,404x = 553,974.50 × 553,974.50
4. Step 4: Simplify right side
   368,404x = 306,887,746,650.25
5. Step 5: Solve for x
   x = 306,887,746,650.25/368,404
6. Step 6: Final answer
   x = 833,019.58