Finding the Third Proportional to 548,136 and 1,111,392

Step by Step Solution

1. Step 1: Write the proportion equation
   548,136 : 1,111,392 = 1,111,392 : x
2. Step 2: Convert to fraction form
   548,136/1,111,392 = 1,111,392/x
3. Step 3: Cross multiply
   548,136x = 1,111,392 × 1,111,392
4. Step 4: Simplify right side
   548,136x = 1,235,192,177,664
5. Step 5: Solve for x
   x = 1,235,192,177,664/548,136
6. Step 6: Final answer
   x = 2,253,441.08