Finding the Third Proportional to 1,915,420 and 2,856,518

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915,420 : 2,856,518 = 2,856,518 : x
2. Step 2: Convert to fraction form
   1,915,420/2,856,518 = 2,856,518/x
3. Step 3: Cross multiply
   1,915,420x = 2,856,518 × 2,856,518
4. Step 4: Simplify right side
   1,915,420x = 8,159,695,084,324
5. Step 5: Solve for x
   x = 8,159,695,084,324/1,915,420
6. Step 6: Final answer
   x = 4,260,003.07