Finding the Third Proportional to 368,928 and 561,046.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,928 : 561,046.50 = 561,046.50 : x
2. Step 2: Convert to fraction form
   368,928/561,046.50 = 561,046.50/x
3. Step 3: Cross multiply
   368,928x = 561,046.50 × 561,046.50
4. Step 4: Simplify right side
   368,928x = 314,773,175,162.25
5. Step 5: Solve for x
   x = 314,773,175,162.25/368,928
6. Step 6: Final answer
   x = 853,210.32