Finding the Third Proportional to 548,664 and 1,321,650

Step by Step Solution

1. Step 1: Write the proportion equation
   548,664 : 1,321,650 = 1,321,650 : x
2. Step 2: Convert to fraction form
   548,664/1,321,650 = 1,321,650/x
3. Step 3: Cross multiply
   548,664x = 1,321,650 × 1,321,650
4. Step 4: Simplify right side
   548,664x = 1,746,758,722,500
5. Step 5: Solve for x
   x = 1,746,758,722,500/548,664
6. Step 6: Final answer
   x = 3,183,658.35