Finding the Third Proportional to 402.50 and 945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   402.50 : 945.50 = 945.50 : x
2. Step 2: Convert to fraction form
   402.50/945.50 = 945.50/x
3. Step 3: Cross multiply
   402.50x = 945.50 × 945.50
4. Step 4: Simplify right side
   402.50x = 893,970.25
5. Step 5: Solve for x
   x = 893,970.25/402.50
6. Step 6: Final answer
   x = 2,221.04