Finding the Third Proportional to 633,790 and 1,320,000

Step by Step Solution

1. Step 1: Write the proportion equation
   633,790 : 1,320,000 = 1,320,000 : x
2. Step 2: Convert to fraction form
   633,790/1,320,000 = 1,320,000/x
3. Step 3: Cross multiply
   633,790x = 1,320,000 × 1,320,000
4. Step 4: Simplify right side
   633,790x = 1,742,400,000,000
5. Step 5: Solve for x
   x = 1,742,400,000,000/633,790
6. Step 6: Final answer
   x = 2,749,175.59