Finding the Third Proportional to 21,921,059 and 30,646,930

Step by Step Solution

1. Step 1: Write the proportion equation
   21,921,059 : 30,646,930 = 30,646,930 : x
2. Step 2: Convert to fraction form
   21,921,059/30,646,930 = 30,646,930/x
3. Step 3: Cross multiply
   21,921,059x = 30,646,930 × 30,646,930
4. Step 4: Simplify right side
   21,921,059x = 939,234,318,424,900
5. Step 5: Solve for x
   x = 939,234,318,424,900/21,921,059
6. Step 6: Final answer
   x = 42,846,210.96