Finding the Third Proportional to 1,161,644 and 2,516,320

Step by Step Solution

1. Step 1: Write the proportion equation
   1,161,644 : 2,516,320 = 2,516,320 : x
2. Step 2: Convert to fraction form
   1,161,644/2,516,320 = 2,516,320/x
3. Step 3: Cross multiply
   1,161,644x = 2,516,320 × 2,516,320
4. Step 4: Simplify right side
   1,161,644x = 6,331,866,342,400
5. Step 5: Solve for x
   x = 6,331,866,342,400/1,161,644
6. Step 6: Final answer
   x = 5,450,780.40