Finding the Third Proportional to 850,440 and 1,315,980

Step by Step Solution

1. Step 1: Write the proportion equation
   850,440 : 1,315,980 = 1,315,980 : x
2. Step 2: Convert to fraction form
   850,440/1,315,980 = 1,315,980/x
3. Step 3: Cross multiply
   850,440x = 1,315,980 × 1,315,980
4. Step 4: Simplify right side
   850,440x = 1,731,803,360,400
5. Step 5: Solve for x
   x = 1,731,803,360,400/850,440
6. Step 6: Final answer
   x = 2,036,361.60