Finding the Third Proportional to 245,857 and 371,046.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,857 : 371,046.50 = 371,046.50 : x
2. Step 2: Convert to fraction form
   245,857/371,046.50 = 371,046.50/x
3. Step 3: Cross multiply
   245,857x = 371,046.50 × 371,046.50
4. Step 4: Simplify right side
   245,857x = 137,675,505,162.25
5. Step 5: Solve for x
   x = 137,675,505,162.25/245,857
6. Step 6: Final answer
   x = 559,982.04