Finding the Third Proportional to 1,445,872 and 2,164,432

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,872 : 2,164,432 = 2,164,432 : x
2. Step 2: Convert to fraction form
   1,445,872/2,164,432 = 2,164,432/x
3. Step 3: Cross multiply
   1,445,872x = 2,164,432 × 2,164,432
4. Step 4: Simplify right side
   1,445,872x = 4,684,765,882,624
5. Step 5: Solve for x
   x = 4,684,765,882,624/1,445,872
6. Step 6: Final answer
   x = 3,240,097.24