Finding the Third Proportional to 5,548,603 and 8,706,359

Step by Step Solution

1. Step 1: Write the proportion equation
   5,548,603 : 8,706,359 = 8,706,359 : x
2. Step 2: Convert to fraction form
   5,548,603/8,706,359 = 8,706,359/x
3. Step 3: Cross multiply
   5,548,603x = 8,706,359 × 8,706,359
4. Step 4: Simplify right side
   5,548,603x = 75,800,687,036,881
5. Step 5: Solve for x
   x = 75,800,687,036,881/5,548,603
6. Step 6: Final answer
   x = 13,661,220.14