Finding the Third Proportional to 9,724,988 and 21,162,424

Step by Step Solution

1. Step 1: Write the proportion equation
   9,724,988 : 21,162,424 = 21,162,424 : x
2. Step 2: Convert to fraction form
   9,724,988/21,162,424 = 21,162,424/x
3. Step 3: Cross multiply
   9,724,988x = 21,162,424 × 21,162,424
4. Step 4: Simplify right side
   9,724,988x = 447,848,189,555,776
5. Step 5: Solve for x
   x = 447,848,189,555,776/9,724,988
6. Step 6: Final answer
   x = 46,051,284.54