Finding the Third Proportional to 178,417.75 and 243,016

Step by Step Solution

1. Step 1: Write the proportion equation
   178,417.75 : 243,016 = 243,016 : x
2. Step 2: Convert to fraction form
   178,417.75/243,016 = 243,016/x
3. Step 3: Cross multiply
   178,417.75x = 243,016 × 243,016
4. Step 4: Simplify right side
   178,417.75x = 59,056,776,256
5. Step 5: Solve for x
   x = 59,056,776,256/178,417.75
6. Step 6: Final answer
   x = 331,002.81