Finding the Third Proportional to 613,240 and 1,340,480

Step by Step Solution

1. Step 1: Write the proportion equation
   613,240 : 1,340,480 = 1,340,480 : x
2. Step 2: Convert to fraction form
   613,240/1,340,480 = 1,340,480/x
3. Step 3: Cross multiply
   613,240x = 1,340,480 × 1,340,480
4. Step 4: Simplify right side
   613,240x = 1,796,886,630,400
5. Step 5: Solve for x
   x = 1,796,886,630,400/613,240
6. Step 6: Final answer
   x = 2,930,152.36