Finding the Third Proportional to 645.47 and 937.83

Step by Step Solution

1. Step 1: Write the proportion equation
   645.47 : 937.83 = 937.83 : x
2. Step 2: Convert to fraction form
   645.47/937.83 = 937.83/x
3. Step 3: Cross multiply
   645.47x = 937.83 × 937.83
4. Step 4: Simplify right side
   645.47x = 879,521.59
5. Step 5: Solve for x
   x = 879,521.59/645.47
6. Step 6: Final answer
   x = 1,362.61