Finding the Third Proportional to 252,078.50 and 553,846

Step by Step Solution

1. Step 1: Write the proportion equation
   252,078.50 : 553,846 = 553,846 : x
2. Step 2: Convert to fraction form
   252,078.50/553,846 = 553,846/x
3. Step 3: Cross multiply
   252,078.50x = 553,846 × 553,846
4. Step 4: Simplify right side
   252,078.50x = 306,745,391,716
5. Step 5: Solve for x
   x = 306,745,391,716/252,078.50
6. Step 6: Final answer
   x = 1,216,864.55