Finding the Third Proportional to 220,834.50 and 476,640

Step by Step Solution

1. Step 1: Write the proportion equation
   220,834.50 : 476,640 = 476,640 : x
2. Step 2: Convert to fraction form
   220,834.50/476,640 = 476,640/x
3. Step 3: Cross multiply
   220,834.50x = 476,640 × 476,640
4. Step 4: Simplify right side
   220,834.50x = 227,185,689,600
5. Step 5: Solve for x
   x = 227,185,689,600/220,834.50
6. Step 6: Final answer
   x = 1,028,759.95