Finding the Third Proportional to 395,141.50 and 564,648

Step by Step Solution

1. Step 1: Write the proportion equation
   395,141.50 : 564,648 = 564,648 : x
2. Step 2: Convert to fraction form
   395,141.50/564,648 = 564,648/x
3. Step 3: Cross multiply
   395,141.50x = 564,648 × 564,648
4. Step 4: Simplify right side
   395,141.50x = 318,827,363,904
5. Step 5: Solve for x
   x = 318,827,363,904/395,141.50
6. Step 6: Final answer
   x = 806,868.84