Finding the Third Proportional to 285,165 and 441,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   285,165 : 441,499.50 = 441,499.50 : x
2. Step 2: Convert to fraction form
   285,165/441,499.50 = 441,499.50/x
3. Step 3: Cross multiply
   285,165x = 441,499.50 × 441,499.50
4. Step 4: Simplify right side
   285,165x = 194,921,808,500.25
5. Step 5: Solve for x
   x = 194,921,808,500.25/285,165
6. Step 6: Final answer
   x = 683,540.44