Finding the Third Proportional to 267,165 and 426,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   267,165 : 426,019.50 = 426,019.50 : x
2. Step 2: Convert to fraction form
   267,165/426,019.50 = 426,019.50/x
3. Step 3: Cross multiply
   267,165x = 426,019.50 × 426,019.50
4. Step 4: Simplify right side
   267,165x = 181,492,614,380.25
5. Step 5: Solve for x
   x = 181,492,614,380.25/267,165
6. Step 6: Final answer
   x = 679,327.81