Finding the Third Proportional to 21,588,891 and 30,872,370

Step by Step Solution

1. Step 1: Write the proportion equation
   21,588,891 : 30,872,370 = 30,872,370 : x
2. Step 2: Convert to fraction form
   21,588,891/30,872,370 = 30,872,370/x
3. Step 3: Cross multiply
   21,588,891x = 30,872,370 × 30,872,370
4. Step 4: Simplify right side
   21,588,891x = 953,103,229,416,900
5. Step 5: Solve for x
   x = 953,103,229,416,900/21,588,891
6. Step 6: Final answer
   x = 44,147,855.00