Finding the Third Proportional to 715,330 and 1,489,428

Step by Step Solution

1. Step 1: Write the proportion equation
   715,330 : 1,489,428 = 1,489,428 : x
2. Step 2: Convert to fraction form
   715,330/1,489,428 = 1,489,428/x
3. Step 3: Cross multiply
   715,330x = 1,489,428 × 1,489,428
4. Step 4: Simplify right side
   715,330x = 2,218,395,767,184
5. Step 5: Solve for x
   x = 2,218,395,767,184/715,330
6. Step 6: Final answer
   x = 3,101,220.09