Finding the Third Proportional to 388,840.50 and 599,845.50

Step by Step Solution

1. Step 1: Write the proportion equation
   388,840.50 : 599,845.50 = 599,845.50 : x
2. Step 2: Convert to fraction form
   388,840.50/599,845.50 = 599,845.50/x
3. Step 3: Cross multiply
   388,840.50x = 599,845.50 × 599,845.50
4. Step 4: Simplify right side
   388,840.50x = 359,814,623,870.25
5. Step 5: Solve for x
   x = 359,814,623,870.25/388,840.50
6. Step 6: Final answer
   x = 925,352.74