Finding the Third Proportional to 2,639,480 and 4,080,516

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,480 : 4,080,516 = 4,080,516 : x
2. Step 2: Convert to fraction form
   2,639,480/4,080,516 = 4,080,516/x
3. Step 3: Cross multiply
   2,639,480x = 4,080,516 × 4,080,516
4. Step 4: Simplify right side
   2,639,480x = 16,650,610,826,256
5. Step 5: Solve for x
   x = 16,650,610,826,256/2,639,480
6. Step 6: Final answer
   x = 6,308,292.10