Finding the Third Proportional to 279,460 and 395,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   279,460 : 395,050.50 = 395,050.50 : x
2. Step 2: Convert to fraction form
   279,460/395,050.50 = 395,050.50/x
3. Step 3: Cross multiply
   279,460x = 395,050.50 × 395,050.50
4. Step 4: Simplify right side
   279,460x = 156,064,897,550.25
5. Step 5: Solve for x
   x = 156,064,897,550.25/279,460
6. Step 6: Final answer
   x = 558,451.65