Finding the Third Proportional to 1,637,854 and 3,543,980

Step by Step Solution

1. Step 1: Write the proportion equation
   1,637,854 : 3,543,980 = 3,543,980 : x
2. Step 2: Convert to fraction form
   1,637,854/3,543,980 = 3,543,980/x
3. Step 3: Cross multiply
   1,637,854x = 3,543,980 × 3,543,980
4. Step 4: Simplify right side
   1,637,854x = 12,559,794,240,400
5. Step 5: Solve for x
   x = 12,559,794,240,400/1,637,854
6. Step 6: Final answer
   x = 7,668,445.56