Finding the Third Proportional to 1,503,612 and 2,172,459

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,612 : 2,172,459 = 2,172,459 : x
2. Step 2: Convert to fraction form
   1,503,612/2,172,459 = 2,172,459/x
3. Step 3: Cross multiply
   1,503,612x = 2,172,459 × 2,172,459
4. Step 4: Simplify right side
   1,503,612x = 4,719,578,106,681
5. Step 5: Solve for x
   x = 4,719,578,106,681/1,503,612
6. Step 6: Final answer
   x = 3,138,827.11