Finding the Third Proportional to 1,445,870 and 2,164,429

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,870 : 2,164,429 = 2,164,429 : x
2. Step 2: Convert to fraction form
   1,445,870/2,164,429 = 2,164,429/x
3. Step 3: Cross multiply
   1,445,870x = 2,164,429 × 2,164,429
4. Step 4: Simplify right side
   1,445,870x = 4,684,752,896,041
5. Step 5: Solve for x
   x = 4,684,752,896,041/1,445,870
6. Step 6: Final answer
   x = 3,240,092.74