Finding the Third Proportional to 9,882,780 and 21,340,200

Step by Step Solution

1. Step 1: Write the proportion equation
   9,882,780 : 21,340,200 = 21,340,200 : x
2. Step 2: Convert to fraction form
   9,882,780/21,340,200 = 21,340,200/x
3. Step 3: Cross multiply
   9,882,780x = 21,340,200 × 21,340,200
4. Step 4: Simplify right side
   9,882,780x = 455,404,136,040,000
5. Step 5: Solve for x
   x = 455,404,136,040,000/9,882,780
6. Step 6: Final answer
   x = 46,080,570.05