Finding the Third Proportional to 8,199,696 and 12,729,300

Step by Step Solution

1. Step 1: Write the proportion equation
   8,199,696 : 12,729,300 = 12,729,300 : x
2. Step 2: Convert to fraction form
   8,199,696/12,729,300 = 12,729,300/x
3. Step 3: Cross multiply
   8,199,696x = 12,729,300 × 12,729,300
4. Step 4: Simplify right side
   8,199,696x = 162,035,078,490,000
5. Step 5: Solve for x
   x = 162,035,078,490,000/8,199,696
6. Step 6: Final answer
   x = 19,761,108.03