Finding the Third Proportional to 21,298,236 and 30,456,727

Step by Step Solution

1. Step 1: Write the proportion equation
   21,298,236 : 30,456,727 = 30,456,727 : x
2. Step 2: Convert to fraction form
   21,298,236/30,456,727 = 30,456,727/x
3. Step 3: Cross multiply
   21,298,236x = 30,456,727 × 30,456,727
4. Step 4: Simplify right side
   21,298,236x = 927,612,219,552,529
5. Step 5: Solve for x
   x = 927,612,219,552,529/21,298,236
6. Step 6: Final answer
   x = 43,553,476.43