Finding the Third Proportional to 1,449,396 and 2,131,470

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449,396 : 2,131,470 = 2,131,470 : x
2. Step 2: Convert to fraction form
   1,449,396/2,131,470 = 2,131,470/x
3. Step 3: Cross multiply
   1,449,396x = 2,131,470 × 2,131,470
4. Step 4: Simplify right side
   1,449,396x = 4,543,164,360,900
5. Step 5: Solve for x
   x = 4,543,164,360,900/1,449,396
6. Step 6: Final answer
   x = 3,134,522.49