Finding the Third Proportional to 9,722,808 and 21,195,120

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722,808 : 21,195,120 = 21,195,120 : x
2. Step 2: Convert to fraction form
   9,722,808/21,195,120 = 21,195,120/x
3. Step 3: Cross multiply
   9,722,808x = 21,195,120 × 21,195,120
4. Step 4: Simplify right side
   9,722,808x = 449,233,111,814,400
5. Step 5: Solve for x
   x = 449,233,111,814,400/9,722,808
6. Step 6: Final answer
   x = 46,204,050.50