Finding the Third Proportional to 21,384,642 and 30,897,123

Step by Step Solution

1. Step 1: Write the proportion equation
   21,384,642 : 30,897,123 = 30,897,123 : x
2. Step 2: Convert to fraction form
   21,384,642/30,897,123 = 30,897,123/x
3. Step 3: Cross multiply
   21,384,642x = 30,897,123 × 30,897,123
4. Step 4: Simplify right side
   21,384,642x = 954,632,209,677,129
5. Step 5: Solve for x
   x = 954,632,209,677,129/21,384,642
6. Step 6: Final answer
   x = 44,641,018.99