Finding the Third Proportional to 2,643,192 and 4,200,984

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643,192 : 4,200,984 = 4,200,984 : x
2. Step 2: Convert to fraction form
   2,643,192/4,200,984 = 4,200,984/x
3. Step 3: Cross multiply
   2,643,192x = 4,200,984 × 4,200,984
4. Step 4: Simplify right side
   2,643,192x = 17,648,266,568,256
5. Step 5: Solve for x
   x = 17,648,266,568,256/2,643,192
6. Step 6: Final answer
   x = 6,676,876.51