Finding the Third Proportional to 399,883.50 and 844,722

Step by Step Solution

1. Step 1: Write the proportion equation
   399,883.50 : 844,722 = 844,722 : x
2. Step 2: Convert to fraction form
   399,883.50/844,722 = 844,722/x
3. Step 3: Cross multiply
   399,883.50x = 844,722 × 844,722
4. Step 4: Simplify right side
   399,883.50x = 713,555,257,284
5. Step 5: Solve for x
   x = 713,555,257,284/399,883.50
6. Step 6: Final answer
   x = 1,784,407.85