Finding the Third Proportional to 1,085,620 and 2,315,516

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085,620 : 2,315,516 = 2,315,516 : x
2. Step 2: Convert to fraction form
   1,085,620/2,315,516 = 2,315,516/x
3. Step 3: Cross multiply
   1,085,620x = 2,315,516 × 2,315,516
4. Step 4: Simplify right side
   1,085,620x = 5,361,614,346,256
5. Step 5: Solve for x
   x = 5,361,614,346,256/1,085,620
6. Step 6: Final answer
   x = 4,938,757.90