Finding the Third Proportional to 388,180.50 and 844,705

Step by Step Solution

1. Step 1: Write the proportion equation
   388,180.50 : 844,705 = 844,705 : x
2. Step 2: Convert to fraction form
   388,180.50/844,705 = 844,705/x
3. Step 3: Cross multiply
   388,180.50x = 844,705 × 844,705
4. Step 4: Simplify right side
   388,180.50x = 713,526,537,025
5. Step 5: Solve for x
   x = 713,526,537,025/388,180.50
6. Step 6: Final answer
   x = 1,838,130.81