Finding the Third Proportional to 613,280 and 1,340,560

Step by Step Solution

1. Step 1: Write the proportion equation
   613,280 : 1,340,560 = 1,340,560 : x
2. Step 2: Convert to fraction form
   613,280/1,340,560 = 1,340,560/x
3. Step 3: Cross multiply
   613,280x = 1,340,560 × 1,340,560
4. Step 4: Simplify right side
   613,280x = 1,797,101,113,600
5. Step 5: Solve for x
   x = 1,797,101,113,600/613,280
6. Step 6: Final answer
   x = 2,930,310.97