Finding the Third Proportional to 1,421,914 and 2,180,376

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,914 : 2,180,376 = 2,180,376 : x
2. Step 2: Convert to fraction form
   1,421,914/2,180,376 = 2,180,376/x
3. Step 3: Cross multiply
   1,421,914x = 2,180,376 × 2,180,376
4. Step 4: Simplify right side
   1,421,914x = 4,754,039,501,376
5. Step 5: Solve for x
   x = 4,754,039,501,376/1,421,914
6. Step 6: Final answer
   x = 3,343,408.60