Finding the Third Proportional to 219,680 and 479,454.50

Step by Step Solution

1. Step 1: Write the proportion equation
   219,680 : 479,454.50 = 479,454.50 : x
2. Step 2: Convert to fraction form
   219,680/479,454.50 = 479,454.50/x
3. Step 3: Cross multiply
   219,680x = 479,454.50 × 479,454.50
4. Step 4: Simplify right side
   219,680x = 229,876,617,570.25
5. Step 5: Solve for x
   x = 229,876,617,570.25/219,680
6. Step 6: Final answer
   x = 1,046,415.78