Finding the Third Proportional to 8,900,666 and 12,090,771

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900,666 : 12,090,771 = 12,090,771 : x
2. Step 2: Convert to fraction form
   8,900,666/12,090,771 = 12,090,771/x
3. Step 3: Cross multiply
   8,900,666x = 12,090,771 × 12,090,771
4. Step 4: Simplify right side
   8,900,666x = 146,186,743,374,441
5. Step 5: Solve for x
   x = 146,186,743,374,441/8,900,666
6. Step 6: Final answer
   x = 16,424,247.73