Finding the Third Proportional to 13,199,800 and 21,003,684

Step by Step Solution

1. Step 1: Write the proportion equation
   13,199,800 : 21,003,684 = 21,003,684 : x
2. Step 2: Convert to fraction form
   13,199,800/21,003,684 = 21,003,684/x
3. Step 3: Cross multiply
   13,199,800x = 21,003,684 × 21,003,684
4. Step 4: Simplify right side
   13,199,800x = 441,154,741,571,856
5. Step 5: Solve for x
   x = 441,154,741,571,856/13,199,800
6. Step 6: Final answer
   x = 33,421,320.14