Finding the Third Proportional to 2,558,142 and 5,503,380

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558,142 : 5,503,380 = 5,503,380 : x
2. Step 2: Convert to fraction form
   2,558,142/5,503,380 = 5,503,380/x
3. Step 3: Cross multiply
   2,558,142x = 5,503,380 × 5,503,380
4. Step 4: Simplify right side
   2,558,142x = 30,287,191,424,400
5. Step 5: Solve for x
   x = 30,287,191,424,400/2,558,142
6. Step 6: Final answer
   x = 11,839,527.06