Finding the Third Proportional to 1,291,776 and 2,780,976

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,776 : 2,780,976 = 2,780,976 : x
2. Step 2: Convert to fraction form
   1,291,776/2,780,976 = 2,780,976/x
3. Step 3: Cross multiply
   1,291,776x = 2,780,976 × 2,780,976
4. Step 4: Simplify right side
   1,291,776x = 7,733,827,512,576
5. Step 5: Solve for x
   x = 7,733,827,512,576/1,291,776
6. Step 6: Final answer
   x = 5,986,972.60