Finding the Third Proportional to 8,083,717.50 and 12,209,499

Step by Step Solution

1. Step 1: Write the proportion equation
   8,083,717.50 : 12,209,499 = 12,209,499 : x
2. Step 2: Convert to fraction form
   8,083,717.50/12,209,499 = 12,209,499/x
3. Step 3: Cross multiply
   8,083,717.50x = 12,209,499 × 12,209,499
4. Step 4: Simplify right side
   8,083,717.50x = 149,071,865,831,001
5. Step 5: Solve for x
   x = 149,071,865,831,001/8,083,717.50
6. Step 6: Final answer
   x = 18,441,003.89