Finding the Third Proportional to 1,272,192 and 1,782,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,192 : 1,782,960 = 1,782,960 : x
2. Step 2: Convert to fraction form
   1,272,192/1,782,960 = 1,782,960/x
3. Step 3: Cross multiply
   1,272,192x = 1,782,960 × 1,782,960
4. Step 4: Simplify right side
   1,272,192x = 3,178,946,361,600
5. Step 5: Solve for x
   x = 3,178,946,361,600/1,272,192
6. Step 6: Final answer
   x = 2,498,794.49