Finding the Third Proportional to 21,298,362 and 30,456,891

Step by Step Solution

1. Step 1: Write the proportion equation
   21,298,362 : 30,456,891 = 30,456,891 : x
2. Step 2: Convert to fraction form
   21,298,362/30,456,891 = 30,456,891/x
3. Step 3: Cross multiply
   21,298,362x = 30,456,891 × 30,456,891
4. Step 4: Simplify right side
   21,298,362x = 927,622,209,385,881
5. Step 5: Solve for x
   x = 927,622,209,385,881/21,298,362
6. Step 6: Final answer
   x = 43,553,687.81