Finding the Third Proportional to 371,936 and 763,648

Step by Step Solution

1. Step 1: Write the proportion equation
   371,936 : 763,648 = 763,648 : x
2. Step 2: Convert to fraction form
   371,936/763,648 = 763,648/x
3. Step 3: Cross multiply
   371,936x = 763,648 × 763,648
4. Step 4: Simplify right side
   371,936x = 583,158,267,904
5. Step 5: Solve for x
   x = 583,158,267,904/371,936
6. Step 6: Final answer
   x = 1,567,899.50