Finding the Third Proportional to 546,867 and 856,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   546,867 : 856,141.50 = 856,141.50 : x
2. Step 2: Convert to fraction form
   546,867/856,141.50 = 856,141.50/x
3. Step 3: Cross multiply
   546,867x = 856,141.50 × 856,141.50
4. Step 4: Simplify right side
   546,867x = 732,978,268,022.25
5. Step 5: Solve for x
   x = 732,978,268,022.25/546,867
6. Step 6: Final answer
   x = 1,340,322.73