Finding the Third Proportional to 9,982,822 and 21,478,832

Step by Step Solution

1. Step 1: Write the proportion equation
   9,982,822 : 21,478,832 = 21,478,832 : x
2. Step 2: Convert to fraction form
   9,982,822/21,478,832 = 21,478,832/x
3. Step 3: Cross multiply
   9,982,822x = 21,478,832 × 21,478,832
4. Step 4: Simplify right side
   9,982,822x = 461,340,224,084,224
5. Step 5: Solve for x
   x = 461,340,224,084,224/9,982,822
6. Step 6: Final answer
   x = 46,213,407.80