Finding the Third Proportional to 1,445,859 and 2,164,414

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,859 : 2,164,414 = 2,164,414 : x
2. Step 2: Convert to fraction form
   1,445,859/2,164,414 = 2,164,414/x
3. Step 3: Cross multiply
   1,445,859x = 2,164,414 × 2,164,414
4. Step 4: Simplify right side
   1,445,859x = 4,684,687,963,396
5. Step 5: Solve for x
   x = 4,684,687,963,396/1,445,859
6. Step 6: Final answer
   x = 3,240,072.49