Finding the Third Proportional to 388,170 and 844,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   388,170 : 844,683.50 = 844,683.50 : x
2. Step 2: Convert to fraction form
   388,170/844,683.50 = 844,683.50/x
3. Step 3: Cross multiply
   388,170x = 844,683.50 × 844,683.50
4. Step 4: Simplify right side
   388,170x = 713,490,215,172.25
5. Step 5: Solve for x
   x = 713,490,215,172.25/388,170
6. Step 6: Final answer
   x = 1,838,086.96