Finding the Third Proportional to 178,320.75 and 277,003

Step by Step Solution

1. Step 1: Write the proportion equation
   178,320.75 : 277,003 = 277,003 : x
2. Step 2: Convert to fraction form
   178,320.75/277,003 = 277,003/x
3. Step 3: Cross multiply
   178,320.75x = 277,003 × 277,003
4. Step 4: Simplify right side
   178,320.75x = 76,730,662,009
5. Step 5: Solve for x
   x = 76,730,662,009/178,320.75
6. Step 6: Final answer
   x = 430,295.76