Finding the Third Proportional to 183,456 and 387,648

Step by Step Solution

1. Step 1: Write the proportion equation
   183,456 : 387,648 = 387,648 : x
2. Step 2: Convert to fraction form
   183,456/387,648 = 387,648/x
3. Step 3: Cross multiply
   183,456x = 387,648 × 387,648
4. Step 4: Simplify right side
   183,456x = 150,270,971,904
5. Step 5: Solve for x
   x = 150,270,971,904/183,456
6. Step 6: Final answer
   x = 819,111.79