Finding the Third Proportional to 5,009,330 and 7,609,611

Step by Step Solution

1. Step 1: Write the proportion equation
   5,009,330 : 7,609,611 = 7,609,611 : x
2. Step 2: Convert to fraction form
   5,009,330/7,609,611 = 7,609,611/x
3. Step 3: Cross multiply
   5,009,330x = 7,609,611 × 7,609,611
4. Step 4: Simplify right side
   5,009,330x = 57,906,179,571,321
5. Step 5: Solve for x
   x = 57,906,179,571,321/5,009,330
6. Step 6: Final answer
   x = 11,559,665.58