Finding the Third Proportional to 308,417 and 460,067.25

Step by Step Solution

1. Step 1: Write the proportion equation
   308,417 : 460,067.25 = 460,067.25 : x
2. Step 2: Convert to fraction form
   308,417/460,067.25 = 460,067.25/x
3. Step 3: Cross multiply
   308,417x = 460,067.25 × 460,067.25
4. Step 4: Simplify right side
   308,417x = 211,661,874,522.56
5. Step 5: Solve for x
   x = 211,661,874,522.56/308,417
6. Step 6: Final answer
   x = 686,284.72