Finding the Third Proportional to 990,723 and 1,574,478

Step by Step Solution

1. Step 1: Write the proportion equation
   990,723 : 1,574,478 = 1,574,478 : x
2. Step 2: Convert to fraction form
   990,723/1,574,478 = 1,574,478/x
3. Step 3: Cross multiply
   990,723x = 1,574,478 × 1,574,478
4. Step 4: Simplify right side
   990,723x = 2,478,980,972,484
5. Step 5: Solve for x
   x = 2,478,980,972,484/990,723
6. Step 6: Final answer
   x = 2,502,193.82