Finding the Third Proportional to 267,963 and 426,544.50

Step by Step Solution

1. Step 1: Write the proportion equation
   267,963 : 426,544.50 = 426,544.50 : x
2. Step 2: Convert to fraction form
   267,963/426,544.50 = 426,544.50/x
3. Step 3: Cross multiply
   267,963x = 426,544.50 × 426,544.50
4. Step 4: Simplify right side
   267,963x = 181,940,210,480.25
5. Step 5: Solve for x
   x = 181,940,210,480.25/267,963
6. Step 6: Final answer
   x = 678,975.12