Finding the Third Proportional to 9,778,928 and 21,260,384

Step by Step Solution

1. Step 1: Write the proportion equation
   9,778,928 : 21,260,384 = 21,260,384 : x
2. Step 2: Convert to fraction form
   9,778,928/21,260,384 = 21,260,384/x
3. Step 3: Cross multiply
   9,778,928x = 21,260,384 × 21,260,384
4. Step 4: Simplify right side
   9,778,928x = 452,003,927,827,456
5. Step 5: Solve for x
   x = 452,003,927,827,456/9,778,928
6. Step 6: Final answer
   x = 46,222,237.02