Finding the Third Proportional to 21,298,364 and 30,456,894

Step by Step Solution

1. Step 1: Write the proportion equation
   21,298,364 : 30,456,894 = 30,456,894 : x
2. Step 2: Convert to fraction form
   21,298,364/30,456,894 = 30,456,894/x
3. Step 3: Cross multiply
   21,298,364x = 30,456,894 × 30,456,894
4. Step 4: Simplify right side
   21,298,364x = 927,622,392,127,236
5. Step 5: Solve for x
   x = 927,622,392,127,236/21,298,364
6. Step 6: Final answer
   x = 43,553,692.30