Finding the Third Proportional to 1,449,398 and 2,131,473

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449,398 : 2,131,473 = 2,131,473 : x
2. Step 2: Convert to fraction form
   1,449,398/2,131,473 = 2,131,473/x
3. Step 3: Cross multiply
   1,449,398x = 2,131,473 × 2,131,473
4. Step 4: Simplify right side
   1,449,398x = 4,543,177,149,729
5. Step 5: Solve for x
   x = 4,543,177,149,729/1,449,398
6. Step 6: Final answer
   x = 3,134,526.99