Finding the Third Proportional to 9,982,848 and 21,478,856

Step by Step Solution

1. Step 1: Write the proportion equation
   9,982,848 : 21,478,856 = 21,478,856 : x
2. Step 2: Convert to fraction form
   9,982,848/21,478,856 = 21,478,856/x
3. Step 3: Cross multiply
   9,982,848x = 21,478,856 × 21,478,856
4. Step 4: Simplify right side
   9,982,848x = 461,341,255,068,736
5. Step 5: Solve for x
   x = 461,341,255,068,736/9,982,848
6. Step 6: Final answer
   x = 46,213,390.71