Finding the Third Proportional to 1,272,159 and 1,782,918

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,159 : 1,782,918 = 1,782,918 : x
2. Step 2: Convert to fraction form
   1,272,159/1,782,918 = 1,782,918/x
3. Step 3: Cross multiply
   1,272,159x = 1,782,918 × 1,782,918
4. Step 4: Simplify right side
   1,272,159x = 3,178,796,594,724
5. Step 5: Solve for x
   x = 3,178,796,594,724/1,272,159
6. Step 6: Final answer
   x = 2,498,741.58