Finding the Third Proportional to 301,986 and 657,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,986 : 657,112.50 = 657,112.50 : x
2. Step 2: Convert to fraction form
   301,986/657,112.50 = 657,112.50/x
3. Step 3: Cross multiply
   301,986x = 657,112.50 × 657,112.50
4. Step 4: Simplify right side
   301,986x = 431,796,837,656.25
5. Step 5: Solve for x
   x = 431,796,837,656.25/301,986
6. Step 6: Final answer
   x = 1,429,857.14