Finding the Third Proportional to 9,778,946 and 21,240,762

Step by Step Solution

1. Step 1: Write the proportion equation
   9,778,946 : 21,240,762 = 21,240,762 : x
2. Step 2: Convert to fraction form
   9,778,946/21,240,762 = 21,240,762/x
3. Step 3: Cross multiply
   9,778,946x = 21,240,762 × 21,240,762
4. Step 4: Simplify right side
   9,778,946x = 451,169,970,340,644
5. Step 5: Solve for x
   x = 451,169,970,340,644/9,778,946
6. Step 6: Final answer
   x = 46,136,871.02