Finding the Third Proportional to 13,331,061 and 19,909,390

Step by Step Solution

1. Step 1: Write the proportion equation
   13,331,061 : 19,909,390 = 19,909,390 : x
2. Step 2: Convert to fraction form
   13,331,061/19,909,390 = 19,909,390/x
3. Step 3: Cross multiply
   13,331,061x = 19,909,390 × 19,909,390
4. Step 4: Simplify right side
   13,331,061x = 396,383,810,172,100
5. Step 5: Solve for x
   x = 396,383,810,172,100/13,331,061
6. Step 6: Final answer
   x = 29,733,853.15