Finding the Third Proportional to 277,237.69 and 417,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   277,237.69 : 417,086.72 = 417,086.72 : x
2. Step 2: Convert to fraction form
   277,237.69/417,086.72 = 417,086.72/x
3. Step 3: Cross multiply
   277,237.69x = 417,086.72 × 417,086.72
4. Step 4: Simplify right side
   277,237.69x = 173,961,330,957.64
5. Step 5: Solve for x
   x = 173,961,330,957.64/277,237.69
6. Step 6: Final answer
   x = 627,480.82