Finding the Third Proportional to 546,642 and 1,200,906

Step by Step Solution

1. Step 1: Write the proportion equation
   546,642 : 1,200,906 = 1,200,906 : x
2. Step 2: Convert to fraction form
   546,642/1,200,906 = 1,200,906/x
3. Step 3: Cross multiply
   546,642x = 1,200,906 × 1,200,906
4. Step 4: Simplify right side
   546,642x = 1,442,175,220,836
5. Step 5: Solve for x
   x = 1,442,175,220,836/546,642
6. Step 6: Final answer
   x = 2,638,244.45