Finding the Third Proportional to 4,991,686 and 7,300,328

Step by Step Solution

1. Step 1: Write the proportion equation
   4,991,686 : 7,300,328 = 7,300,328 : x
2. Step 2: Convert to fraction form
   4,991,686/7,300,328 = 7,300,328/x
3. Step 3: Cross multiply
   4,991,686x = 7,300,328 × 7,300,328
4. Step 4: Simplify right side
   4,991,686x = 53,294,788,907,584
5. Step 5: Solve for x
   x = 53,294,788,907,584/4,991,686
6. Step 6: Final answer
   x = 10,676,711.02