Finding the Third Proportional to 1,503,617 and 2,172,467

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,617 : 2,172,467 = 2,172,467 : x
2. Step 2: Convert to fraction form
   1,503,617/2,172,467 = 2,172,467/x
3. Step 3: Cross multiply
   1,503,617x = 2,172,467 × 2,172,467
4. Step 4: Simplify right side
   1,503,617x = 4,719,612,866,089
5. Step 5: Solve for x
   x = 4,719,612,866,089/1,503,617
6. Step 6: Final answer
   x = 3,138,839.79