Finding the Third Proportional to 389,548.50 and 608,928

Step by Step Solution

1. Step 1: Write the proportion equation
   389,548.50 : 608,928 = 608,928 : x
2. Step 2: Convert to fraction form
   389,548.50/608,928 = 608,928/x
3. Step 3: Cross multiply
   389,548.50x = 608,928 × 608,928
4. Step 4: Simplify right side
   389,548.50x = 370,793,309,184
5. Step 5: Solve for x
   x = 370,793,309,184/389,548.50
6. Step 6: Final answer
   x = 951,854.03