Finding the Third Proportional to 5,509,842 and 8,687,334

Step by Step Solution

1. Step 1: Write the proportion equation
   5,509,842 : 8,687,334 = 8,687,334 : x
2. Step 2: Convert to fraction form
   5,509,842/8,687,334 = 8,687,334/x
3. Step 3: Cross multiply
   5,509,842x = 8,687,334 × 8,687,334
4. Step 4: Simplify right side
   5,509,842x = 75,469,772,027,556
5. Step 5: Solve for x
   x = 75,469,772,027,556/5,509,842
6. Step 6: Final answer
   x = 13,697,266.10