Finding the Third Proportional to 1,213,448 and 2,648,080

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213,448 : 2,648,080 = 2,648,080 : x
2. Step 2: Convert to fraction form
   1,213,448/2,648,080 = 2,648,080/x
3. Step 3: Cross multiply
   1,213,448x = 2,648,080 × 2,648,080
4. Step 4: Simplify right side
   1,213,448x = 7,012,327,686,400
5. Step 5: Solve for x
   x = 7,012,327,686,400/1,213,448
6. Step 6: Final answer
   x = 5,778,844.82