Finding the Third Proportional to 170,772 and 245,970

Step by Step Solution

1. Step 1: Write the proportion equation
   170,772 : 245,970 = 245,970 : x
2. Step 2: Convert to fraction form
   170,772/245,970 = 245,970/x
3. Step 3: Cross multiply
   170,772x = 245,970 × 245,970
4. Step 4: Simplify right side
   170,772x = 60,501,240,900
5. Step 5: Solve for x
   x = 60,501,240,900/170,772
6. Step 6: Final answer
   x = 354,280.80