Finding the Third Proportional to 1,445,876 and 2,164,438

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,876 : 2,164,438 = 2,164,438 : x
2. Step 2: Convert to fraction form
   1,445,876/2,164,438 = 2,164,438/x
3. Step 3: Cross multiply
   1,445,876x = 2,164,438 × 2,164,438
4. Step 4: Simplify right side
   1,445,876x = 4,684,791,855,844
5. Step 5: Solve for x
   x = 4,684,791,855,844/1,445,876
6. Step 6: Final answer
   x = 3,240,106.24