Finding the Third Proportional to 168,349.50 and 363,405

Step by Step Solution

1. Step 1: Write the proportion equation
   168,349.50 : 363,405 = 363,405 : x
2. Step 2: Convert to fraction form
   168,349.50/363,405 = 363,405/x
3. Step 3: Cross multiply
   168,349.50x = 363,405 × 363,405
4. Step 4: Simplify right side
   168,349.50x = 132,063,194,025
5. Step 5: Solve for x
   x = 132,063,194,025/168,349.50
6. Step 6: Final answer
   x = 784,458.49