Finding the Third Proportional to 911,272 and 1,998,056

Step by Step Solution

1. Step 1: Write the proportion equation
   911,272 : 1,998,056 = 1,998,056 : x
2. Step 2: Convert to fraction form
   911,272/1,998,056 = 1,998,056/x
3. Step 3: Cross multiply
   911,272x = 1,998,056 × 1,998,056
4. Step 4: Simplify right side
   911,272x = 3,992,227,779,136
5. Step 5: Solve for x
   x = 3,992,227,779,136/911,272
6. Step 6: Final answer
   x = 4,380,939.81