Finding the Third Proportional to 613,600 and 1,345,280

Step by Step Solution

1. Step 1: Write the proportion equation
   613,600 : 1,345,280 = 1,345,280 : x
2. Step 2: Convert to fraction form
   613,600/1,345,280 = 1,345,280/x
3. Step 3: Cross multiply
   613,600x = 1,345,280 × 1,345,280
4. Step 4: Simplify right side
   613,600x = 1,809,778,278,400
5. Step 5: Solve for x
   x = 1,809,778,278,400/613,600
6. Step 6: Final answer
   x = 2,949,443.09