Finding the Third Proportional to 358,273 and 541,441.50

Step by Step Solution

1. Step 1: Write the proportion equation
   358,273 : 541,441.50 = 541,441.50 : x
2. Step 2: Convert to fraction form
   358,273/541,441.50 = 541,441.50/x
3. Step 3: Cross multiply
   358,273x = 541,441.50 × 541,441.50
4. Step 4: Simplify right side
   358,273x = 293,158,897,922.25
5. Step 5: Solve for x
   x = 293,158,897,922.25/358,273
6. Step 6: Final answer
   x = 818,255.63