Finding the Third Proportional to 9,979,596 and 21,493,980

Step by Step Solution

1. Step 1: Write the proportion equation
   9,979,596 : 21,493,980 = 21,493,980 : x
2. Step 2: Convert to fraction form
   9,979,596/21,493,980 = 21,493,980/x
3. Step 3: Cross multiply
   9,979,596x = 21,493,980 × 21,493,980
4. Step 4: Simplify right side
   9,979,596x = 461,991,176,240,400
5. Step 5: Solve for x
   x = 461,991,176,240,400/9,979,596
6. Step 6: Final answer
   x = 46,293,575.03