Finding the Third Proportional to 243,171 and 363,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,171 : 363,784.50 = 363,784.50 : x
2. Step 2: Convert to fraction form
   243,171/363,784.50 = 363,784.50/x
3. Step 3: Cross multiply
   243,171x = 363,784.50 × 363,784.50
4. Step 4: Simplify right side
   243,171x = 132,339,162,440.25
5. Step 5: Solve for x
   x = 132,339,162,440.25/243,171
6. Step 6: Final answer
   x = 544,222.64