Finding the Third Proportional to 768,632 and 1,155,408

Step by Step Solution

1. Step 1: Write the proportion equation
   768,632 : 1,155,408 = 1,155,408 : x
2. Step 2: Convert to fraction form
   768,632/1,155,408 = 1,155,408/x
3. Step 3: Cross multiply
   768,632x = 1,155,408 × 1,155,408
4. Step 4: Simplify right side
   768,632x = 1,334,967,646,464
5. Step 5: Solve for x
   x = 1,334,967,646,464/768,632
6. Step 6: Final answer
   x = 1,736,809.87