Finding the Third Proportional to 1,445,874 and 2,164,434

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,874 : 2,164,434 = 2,164,434 : x
2. Step 2: Convert to fraction form
   1,445,874/2,164,434 = 2,164,434/x
3. Step 3: Cross multiply
   1,445,874x = 2,164,434 × 2,164,434
4. Step 4: Simplify right side
   1,445,874x = 4,684,774,540,356
5. Step 5: Solve for x
   x = 4,684,774,540,356/1,445,874
6. Step 6: Final answer
   x = 3,240,098.75