Finding the Third Proportional to 250,495.50 and 553,479

Step by Step Solution

1. Step 1: Write the proportion equation
   250,495.50 : 553,479 = 553,479 : x
2. Step 2: Convert to fraction form
   250,495.50/553,479 = 553,479/x
3. Step 3: Cross multiply
   250,495.50x = 553,479 × 553,479
4. Step 4: Simplify right side
   250,495.50x = 306,339,003,441
5. Step 5: Solve for x
   x = 306,339,003,441/250,495.50
6. Step 6: Final answer
   x = 1,222,932.16