Finding the Third Proportional to 1,428,408 and 2,975,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,408 : 2,975,172 = 2,975,172 : x
2. Step 2: Convert to fraction form
   1,428,408/2,975,172 = 2,975,172/x
3. Step 3: Cross multiply
   1,428,408x = 2,975,172 × 2,975,172
4. Step 4: Simplify right side
   1,428,408x = 8,851,648,429,584
5. Step 5: Solve for x
   x = 8,851,648,429,584/1,428,408
6. Step 6: Final answer
   x = 6,196,862.82