Finding the Third Proportional to 1,503,622 and 2,172,472

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,622 : 2,172,472 = 2,172,472 : x
2. Step 2: Convert to fraction form
   1,503,622/2,172,472 = 2,172,472/x
3. Step 3: Cross multiply
   1,503,622x = 2,172,472 × 2,172,472
4. Step 4: Simplify right side
   1,503,622x = 4,719,634,590,784
5. Step 5: Solve for x
   x = 4,719,634,590,784/1,503,622
6. Step 6: Final answer
   x = 3,138,843.80