Finding the Third Proportional to 358,474 and 550,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   358,474 : 550,243.50 = 550,243.50 : x
2. Step 2: Convert to fraction form
   358,474/550,243.50 = 550,243.50/x
3. Step 3: Cross multiply
   358,474x = 550,243.50 × 550,243.50
4. Step 4: Simplify right side
   358,474x = 302,767,909,292.25
5. Step 5: Solve for x
   x = 302,767,909,292.25/358,474
6. Step 6: Final answer
   x = 844,602.14