Finding the Third Proportional to 1,215,374 and 2,649,434

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,374 : 2,649,434 = 2,649,434 : x
2. Step 2: Convert to fraction form
   1,215,374/2,649,434 = 2,649,434/x
3. Step 3: Cross multiply
   1,215,374x = 2,649,434 × 2,649,434
4. Step 4: Simplify right side
   1,215,374x = 7,019,500,520,356
5. Step 5: Solve for x
   x = 7,019,500,520,356/1,215,374
6. Step 6: Final answer
   x = 5,775,588.85