Finding the Third Proportional to 1,445,866 and 2,164,423

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,866 : 2,164,423 = 2,164,423 : x
2. Step 2: Convert to fraction form
   1,445,866/2,164,423 = 2,164,423/x
3. Step 3: Cross multiply
   1,445,866x = 2,164,423 × 2,164,423
4. Step 4: Simplify right side
   1,445,866x = 4,684,726,922,929
5. Step 5: Solve for x
   x = 4,684,726,922,929/1,445,866
6. Step 6: Final answer
   x = 3,240,083.74