Finding the Third Proportional to 5,911,546 and 8,909,598

Step by Step Solution

1. Step 1: Write the proportion equation
   5,911,546 : 8,909,598 = 8,909,598 : x
2. Step 2: Convert to fraction form
   5,911,546/8,909,598 = 8,909,598/x
3. Step 3: Cross multiply
   5,911,546x = 8,909,598 × 8,909,598
4. Step 4: Simplify right side
   5,911,546x = 79,380,936,521,604
5. Step 5: Solve for x
   x = 79,380,936,521,604/5,911,546
6. Step 6: Final answer
   x = 13,428,117.88