Finding the Third Proportional to 1,503,619 and 2,172,470

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,619 : 2,172,470 = 2,172,470 : x
2. Step 2: Convert to fraction form
   1,503,619/2,172,470 = 2,172,470/x
3. Step 3: Cross multiply
   1,503,619x = 2,172,470 × 2,172,470
4. Step 4: Simplify right side
   1,503,619x = 4,719,625,900,900
5. Step 5: Solve for x
   x = 4,719,625,900,900/1,503,619
6. Step 6: Final answer
   x = 3,138,844.28