Finding the Third Proportional to 239,206 and 370,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,206 : 370,385.50 = 370,385.50 : x
2. Step 2: Convert to fraction form
   239,206/370,385.50 = 370,385.50/x
3. Step 3: Cross multiply
   239,206x = 370,385.50 × 370,385.50
4. Step 4: Simplify right side
   239,206x = 137,185,418,610.25
5. Step 5: Solve for x
   x = 137,185,418,610.25/239,206
6. Step 6: Final answer
   x = 573,503.25