Finding the Third Proportional to 787,872 and 1,728,924

Step by Step Solution

1. Step 1: Write the proportion equation
   787,872 : 1,728,924 = 1,728,924 : x
2. Step 2: Convert to fraction form
   787,872/1,728,924 = 1,728,924/x
3. Step 3: Cross multiply
   787,872x = 1,728,924 × 1,728,924
4. Step 4: Simplify right side
   787,872x = 2,989,178,197,776
5. Step 5: Solve for x
   x = 2,989,178,197,776/787,872
6. Step 6: Final answer
   x = 3,793,989.63